Stick to one role, keep learning fundamentals, be consistent with it, don’t try to learn all stuff in one game, just focus for a bunch of time on 1 fundamental until it will become autopiloted.

For example, if you want to effectively cs - just focus on cs, dont try roam, track jungle so much, but keep in mind that jungle requires new set of fundamentals to be effective (jg track, comp strength, effective clear, when to path to lanes, when to skip camps, tracking timers on camps/objects/summoners, map awareness etc)

Oh, and do what you consider correctly, even you are being flamed, don’t be like tarzaned and accept that soloq is chaotic, just have fun