The problem is knowing what from where to where and to a certain extent when can cause issues as well.
That's what I didn't like about the EDDB trader app. You have to know which base you're buying from and which one you're selling to, etc, etc, etc. It's like you have to tell it everything for it to tell you anything.
With the INARA app, all you do is type in where you are, how far you're willing to travel and if you want a round trip trade and it does it all for you instantly. I absolutely
LOVE that app.
I can't wait to get my grinding done so I can use it more. I'm working on Federation ranks now to get the Corvette, but once I'm done with that and get it set up I'll probably do some trading to build my wallet back up (because I'll be near broke after buying the Corvette and outfitting it) and then I'll go back to trying to get the Vette into action and kill a lot of NPC's for materials and start getting all my ships fully engineered.