Really? This seems to be the #1 response from non-casual players. Ok, let me play the game. When I read about Elite before I bought it, combat was my main desire. Big space battles are awesome.
1. Decide I want to do some combat
2. Sell my ship and trade for something combat focused
3. Spend whatever left on parts
4. Grab some combat missions that - from their very gently caressing vague description - sound fun
5. Die a bunch of times on the combat missions, quickly realize that because the mission pays low, doesn't mean it will be easy
6. Through trial and error, figure out exactly which combat missions are possible to complete
7. After completing some missions, the soul-crushing realization of how long it will take to progress to conflict zones sets in as I'll need a 150m FDL
8. Decide I need to make more money faster
9. Switch to trading ship
10. Not bad, make about 10m credits, but get very sick of jumping and cruising, miss the thrill of combat. The best hauler is still verrrrry far away from being purchased. Need money even faster.
11. Pick up a Dolphin as I heard passenger missions are nice, can't do anything just yet because you'll want to blow your brains out without an engineered FSD
12. Lookup felicity, need meta alloys
13. Fly a mind-numbing amount of jumps in a non-engineered mid grade FSD to Darnielle's progress, none for sale despite it being "so easy, just buy them!" online
14. Find a spreadsheet containing known locations of them on planets
15. Buy an SRV
16. More ungodly jumps to a planet with barnicles
17. Land, wrestle with glitchy rubbish SRV controls
18. Find barnacle, finally get a meta alloy
19. Yet more netflix and jumping to Felicity
20. Engineer my FSD, get a piddly increase in jumping
21. Rage-sell my dolphin and try mining
22. Time spent vs credit income is utterly ridiculous compared to trading or passenger missions
23. Rage crash my mining ship into the sun
24. Buy an ASP, honk around sytems, quickly get bored of supercruising to planets
25. Go back to Bubble to sell my data, get a laughable amount of credits, not going to jump 5000 lys away doing that ad nauseum to get a higher amount of credits
21. Quit the game because after doing ALLLLLL that over WEEKS of playing and I haven't even made a dent in FSD progress. I've literally been playing the game trying to progress and have poopoo for mats.
Oh but GOD FORBID I try to "farm" any mats or lookup clever ways to get mats. No no no, you should just be playing the same missions over and over and over and over again until you get enough for the next level of engineering. You went to Dav's hope to try and get mats faster to save time? LOL, if you had just played the game for 100 more hours you would've had the mats anyways!!!
In summary: why isn't there an "easy/medium/hard" difficulty slider for Solo mode? That way, all the hardcore elite players who play the game 40 hours a week will feel special, and people who have video games as a hobby with only a few hours a week will get satisfaction and progression? Then you can create a subforum specifically for easy mode, that way we don't get condescending elitist responses from someone who has 1000 hours into the game and loves everything about it.
I am Elite in Combat and have never set a foot into a FDL (apart from trying it once in a beta - hated it). You don't need a FDL to do combat. It is (one of the) current Meta-ships, but that only makes it a bit easier in it, not necessary. Below I try to answer your points with my ideas, but the most important thing first ... if you want help, ask around point 2., not at 26. Now you already built up a lot of frustration and it will be hard for you to enjoy the game, no matter what comes in the future.
1. Good thing ... I too prefer combat the most.
2. Why sell a good ship? Keep it as a backup, should the worst happen you can always sell it on the rebuy screen, and it gives you alternatives - imagine you don't like the new one. Selling ships also always includes 10% loss. You can also go into combat with nearly any ship, if you choose wisely.
3. parts are important, especially thrusters and PD
4. this can be tricky ... many combat missions (I am looking at you, solo massacre missions) have very high kill counts that are time consuming. For starters I'd suggest going to a Ressource Extraction site (RES), difficulty of your choosing. You will have police helping you (don't shoot them!), unless you go for a Hazardous one. You can also choose when and whom to engage, giving you an alpha strike. And you will only encounter "civilian" ships - skip Conflict Zones at the beginning, the ships there are a lot tougher. This is possible in the starter sidewinder, although I'd upgrade a few parts first to be fun (see 3.) Nav-Beacons are also a possibility.
5. make sure to check the difficulty of the mission. Payout is dependent on you rank and you standing, but difficulty is stated in the mission. If it is in red, telling you something along the lines "this might be to tough" - get another one first. Or go for a RES.
6. all (solo) combat missions are possible to be completed in nearly every ship - I do most in an Eagle (admittedly heavily engineered). Wing Missions can be to tough (wing assassinations I no longer try in the eagle)
7. You don't need a FDL for a Conflict Zone ... I do low and mediums in my eagle, mediums are tough, for high its TTK is to high. An unengineered A-rated Sidewinder can complete low intensity conflict zones sucessfully.
8. That is your choice ... but making money is extremely fast anyhow.
9. I hope you kept your prior ship - spicing things up makes it more fun, do a trade run, get into the combat ship, blast some pirates out of the sky, repeat - less tedium. Also try rare trading, those are more engaging than simple A-B-A runs, and you also get quite a bit in exploration data - map any earthlike worlds and waterworlds, and you'll make quite a few millions extra on the first run
10. Why the rush for the so called best?
11. check all the passenger missions, not all are long distance trips
12. good thing, but Elvira Martuuk in Khun might be easier to unlock, if you just care about the FSD.
13. I hope you scanned the systems on your travel - many jumps = many scans. You are unlucky here, since the supply just run dry. There are also other ways to get meta alloys, there are people supplying them for example, some for palladium, some even if you just ask nicely.
14. one way to find them, but not the only one.
15. good choice. although it is possible to harvest them with a (small) ship, an SRV is much easier
16. (see 13.)
17. can't follow you there, I find the SRV extremely easy to control. - I set it up like my ship, including rolling, so it is just natural to adjust to anything the terrain brings. Full Throttle + low G = high chance of losing grip
18. Congratulations.
19. (see 13.)
20. ship was probably still to heavy. D-rated modules are lighter, A-rated is not always the best.
21. don't sell ships ... but ok, it was not a calm calculated decision
22. I start to wonder what the expectation of a non-ridiculous income is ... did you try core mining? even normal mining in a medium ship gets you a few hours per evening, if you are doing it relaxed (since you won't have optimised equipment just starting out) - people are making hundreds of millions per hour with core mining.
23. that'll not help you earn money ... but you know that, again, it was not a calculated decision.
24. Exploration is not for everyone - but you don't need an asp for exploration, jump range does not help you get more scans in the same time. (If you want to go to colonia or beagle point, jump range helps for sure). Just scan earth like worlds and waterworlds - for the rest a FSS scan is enough, if even that ... your choice.
25. distance from the bubble has no influence on payout (except for the chance of first discovery bonus ...)
21. (I guess 26.) ... Just saying, if you'd stayed in your combat ship, you'd probably already gotten your 150M ... or at least improved your flying and collected a few nice combat built ships. You'd built up your reputation in the area and people would pay you better for the missions. You'd probably not get the 50M wing massacre missions yet (which are a lot of work doing them solo, 81 kills or similar), but 10-20M ones should be available for you.
Concerning Easy-medium-hard ... this setting already exists - you choose how hard you want your enemies to be, to a point. Nav Beacon / Low RES = Very Easy, Low Intensity Conflict Zones / RES = Easy, Medium Intensity Conflict Zone / High or Hazardous RES / Non-Human Signal Sources Threat 4 or less = Medium, High Intensity Conflict Zones / NHSS Threat 5 = Hard, NHSS Threat 6+ Very Hard.
Of course those difficulties are relative, some may argue it is all easy / hard, but you get to choose.