The combat doesn't allways go like I would want. Here I meet a Python that does a lot of damage and I have to run.
I try at one point to reverse thrust and do damage that way shooting but then I also take a lot of damage
That NPC Python is ranked Deadly, which is just 1 rank below Elite so you can expect them to be very tough. For reference, NPC ships cheat in many ways, some which are obvious and some not. Their stats and performance is not tied to their module limitations. They take absolutely zero heat damage. Their shield cell banks generate no heat at all (as you can see at 1:50 and again at 3:00 in your video) whereas player SCBs burn up your ship. For sustained bounty hunting sessions I prefer the following:
1. Fitting the largest bi-weave shield generator and engineering for
thermal resistance. I then stack a couple of engineered shield boosters to get above 50% shield resistances across the board. I do have my own SCB equipped for emergencies but only use it when I'm engaged with multiple targets.
2. Having at least some fixed weapons to counter chaff. They do more damage and you will find that gimballed weapons miss quite often at range even without chaff scrambling due to their normal circling motion. To make best use of fixed weapons, you will want to learn to flash your flight-assist toggle off and on for tighter turns (especially when flying large ships). The Corvette has double class 4 weapon hardpoints right above the bridge that have excellent convergence - these are ideal candidates for fixed beams, pulses, or even plasma accelerators.
3. Zapping medium and large ships with a
cancel rail when they attempt to use their SCB (small ships are easier to just overpower with DPS)
4. Avoid ramming or being rammed. This exchange is not favorable to the Corvette and you can see you lose 20% off your shields even with a low speed crash at 1:43
5. Juggling my distributor allocations ("pips") so that my capacitors are neither empty nor full - otherwise I am simply wasting the potential of my ship. You can do this by making liberal use of boost to get a favorable angle during combat. You will find that boost-turning drastically improves your on-target time without having to joust head-on, especially versus a slow turner like the Python. In your video, I noticed that you only used boost to close distance at the beginning and again when low-waking out. You can get much more out of your ship, but you have to ask for it!
6. If your shields go down, boost away from the fight and max out your SYS allocation to get them to come back sooner. Then you can get back into the fray, if you have the confidence. Don't face-tank damage with your hull unless you are about to score a kill.