Hi I've been playing heads up hyper turbo sngs and 6 max (but often running heads up or short handed) low bb cash games (max buy in 10bb) so lots of 10-40bb play.

I've been playing these for 13 years with lots of volume. I've done fairly well from them but I haven't studied much in recent years. At the start I watched lots and lots of videos of good regs playing hyper turbos and similar formats and between what I learnt there and intuition/experience in these games where most regs don't seem to have studied much, I've been able to do fairly well. The kind of content I exposed myself to 13 years ago seems fair less technical than what is out there today. I think I have a good feel for the game and intuition but my theory base has holes all over the place. I more just click the buttons I've found seem to work :). I'd like to really spend a lot of time studying the game and start feeling more confident in my own theory so that I can branch out and move away from purely low stack poker and play normal nlhe cash games and mtts.

I'm a bit lost to know exactly what my best strategy should be now going forward. There's so many videos, courses and training software but I have no idea where to begin and what's most effective. I'm happy to put lots of time into this but I'm a bit stuck with knowing my best route forward. Any advice would be greatly appreciated, thanks!