Chronic levels of bad player needs some actual advice on how to play this game (GONE WRONG)

So here's the deal. I'm pretty bad. And, you know what, that's really the first step to getting better I think. I know that I'm bad, and I know that there are things that I need to work on. However I don't really know, as a bad player, what those things are. I get how to lane, I'm fairly skilled at using most champions (I know what they do at any rate) and I'm pretty well settled into my lane of top lane for what I enjoy doing as a player. But I'm pretty lost from there. I have been given advice in the past on what I can do, but most of the time it's just, "get coaching" or "watch tutorials" or the like. I need some help in a... less mechanical, more gameplay sense. When to ward, where to ward, laning tips, when to telegank, when to back, how to freeze, when to push, when to group, when to split, champion pool advice. breathhhh So yeah. I'm pretty stuck right now to be honest. I can't get coaching because I work 16 hour days during the week, and my weekends are pretty busy, and I rarely play. I don't really want to watch tutorials or videos because I don't want to do what works for someone else, I want to garner my own playstyle and learn from my own experience. Anyone have some advice for an old top lane main?