Growing as a player

I have played league, I would say very frequently, over the past few years (at least 3-4 games a day roughly, not including off days due to whatever). I lost my first account due to some past mistakes I have made, which I do regret but besides the point, I'm at a point where what I'm doing isn't enough. I have got every champion to at least mastery 4 once, plus I watch streams and youtube videos pretty frequently so I think I have a pretty good starting grounds for game knowledge: Jungle paths, Different item builds and what they are supposed to accomplish, champs and their deadly combos, but not so much team comps. Normally I just work out in my head what a teams' strengths would be base off of the champs and by what keystones they have you can almost tell what they are going to build so I can at least have a better understanding of what to expect. What I want is more out of my league games and I think I'm ready mentally to really start breaking down games as I play them and having a better awareness of everything that is happening. League is one of my biggest hobbies and I think it's time for my skill to actually reflect the probably too much time I've put into this amazing/ugly/beautiful/horrible game we all love and hate interchangeably almost every day we play it. As of right now, I know I'm not taking advantage of everything possible in my games. I haven't played a whole lot of ranked this season. Right now I've decided my biggest focus should be to just play normals, really shooting for perfect cs while trying to place safely in lane out trading my opponent; Proper warding in areas that have a much higher chance of spotting an enemy; Objective control; And outright better mechanics than my opponents. I would love any input that you guys have, tips or tricks or whatever you would like to call them that seem to really help you out in having more control over your games!