I haven't played this crappy since I first started this game

I am honest to God getting my ass whooped so often it's unreal, every single game, I thought I was getting better but obviously I'm not which sucks because I want to play this game the way it's intended but I can't always dodge thresh's q I get fucked up by lux support, xayah makes me look like every game it's my first time playing a marksman. It's like I'm addicted to losing because even when I've had somewhat of a decent game I still lose. At least on my other account I was getting as and bs and s sometimes I was doing really well getting high farm mechanics were real good I was playing really well in all aspects. If I can snowball out of control I still found ways to be competitive in team fights and kick ass with every champion I played I felt good, now I feel like shit and it sucks this other account getting my ass whooped in every way now I can't cs worth shit I can't team fight I'm constantly making bad decisions and I know that I shouldn't do this or hey don't do that like I know that and for some fucking reason I keep making the same mistakes like wtf. I'm not having fun anymore because I can't win my lane, I can't secure kills like I used to can't shot call or play correctly can't kite anymore just completely losing every single fucking game, I can go into my next game and actually predict I'll lose against I've won I think 3 pvp games only 1 of them I actually did well in out of like 40+ games I don't understand how the fuck could I be that bad.....it makes no sense like by luck I should have like decent or good games but no I'm just shitty crappy player that even though I know a lot about this game understand more than maybe other bronze players I'm having a hard time implementing them in the game. Like I know that Thresh is lining up to pull me close to him I know that I'm supposed to drop my w on him hit him a few times and anticipate his pull and dodge it than go ham once he misses on him or the adc but instead I'm hugging the fucking tower like a little pussy because I'm scared of losing again. It's honestly very depressing to lose so much and realize that in reality even though I thought I was getting better I'm not I'm getting worst, and worst and their's nothing I can do about it.