I was fairly good but I played junior. I never played adult league.
As a kid I used to practice 10+ hours a day on the weekends and sometimes I would do 2hours in the evening during the week if I was allowed to. Eventually, I've found a girlfriend and that pretty much was it. :-D
In today's standards I could say (maybe) that I was upper intermediate but now I'd say I'm beginner. Back then I believed that pool should be 'clean' so I never practiced or learnt english as I felt I should be able to do all with stop shots, draws and follow shots. Now the game changed and I see that english shots became crucial (or so I was told). When I play now I can do some fairly difficult shots and then I go on black and I miss a basic shot (pisses me off).
yes, I do need to practice, yes I would love to get an instructor but I'm not planning to due to cost and the fact that I don't plan to play professionally again. Maybe some local tournaments for fun but not really serious. Just want to improve and be better but the drive to be amazing is no longer there (family, job etc. all takes over so no time to reach anything serious)
I came here because I wanted to get advice not only where to start but also what to avoid. Just the banking system on YouTube has so many different explanations etc. so it would be easy to get sucked into the rabbit hole. Hence why I prefer so good old drills, videos or books that you guys already provided and I'll start there.
Thank you all so far I'll check all the things you've recommended and see what suits me. If anything it will be a good practice anyway.