Anyone else feel this way?

I'm literally at my wits end with this game at this point. I've been playing since mid-late season 4, and i'm still COMPLETE TRASH! Over all this time i've watched/read so many guides, tips and tutorials on ways to improve gameplay/mechanics/csing etc. and after ALL this time, only my cs is getting a tiny better(although it's still garbage as well). I just dont know anymore, really i dont. It's like i can't get any better because, no matter how much i practice, work on my attitude entering games, play with friends, nothing makes a difference. Over the few years i've played this game, i've obviously gotten better from when i FIRST started playing, but ever since season 5 i've completely hit a wall with any progress and it's frustrating. I can't pick a lane i'm consistent enough in to just main that lane and improve that way. Likewise with champs, because of meta shit and patches, i feel like i can never consistently main a champion. As far as my teammates goes, like every player i have some good and some bad, but regardless i NEVER flame teamames, or speak derogatorily to my teammates as i see it being a waste of time especially when i have way too much to work on myself.

Basically here's how a game of mine goes -In champ select: I always try to pick champs based on what my team needs and how the enemy team is forming theirs BUT i ALWAYS end up making the wrong decision as i can never really tell how to pick a champ accordingly to those 2 details.

• In lane: I always get crapped on and i try my best to play passive and farm because whenever i try to play aggro in lane like how some champs are SUPPOSED to be played, i screw up along the lines. This causes me to fear roaming, because i dont want my lane to be taken which usually means i cant help my team, which is more important than 1 tower. -Ganking(If Jungler)/Roaming:Now here's where i get pissed. I realize that when i'm losing lane and there's nothing i can do the best thing to do is to help your team so that in the end you can all help each other. With that said, WHENEVER i try this i ALWAYS do something wrong and either get me or my teammate killed(sometimes both), or i end up being of no help in the gank/roam and make either me or a teammate use important spells/ults/summoners for no reason because i cant deliver. -Late to End game: Basically at this point i'm pissed off with my performance, and what makes it all worse is when teammates feel like they did something to mess the game up when it was my fault to begin with.

I'm a person that hates screwing things up for others, so when i perform poorly in games, not only am i ruining my own experience but wasting the time of 4 other individuals. All in all, i'll take any advice i can get but i think i'm just venting and at this point i'm really just done trying. I feel like it's a waste of time to continue playing a game i've been playing for 2-3 years or so and i get no more enjoyment out of BECAUSE AND ONLY BECAUSE i just literally cant improve at it. Why don't i just put my free time into another game and try my luck there because maybe league just isn't meant for me.

Anyways sorry for the essay, and thanks for your time.

As a side note: My actual life isn't in any way bad. I have a nice job, friends and family. I mostly play league when i'm bored or in my free time(like 8 or 9pm-12am on work nights) and still make time for other hobbies(reading, guitar, going outside etc.). I'm actually a very very chill and relaxed person and i dont usually allow allot of things to get to me unless i feel like i'm affecting others in any way, nor have i ever raged at games before until i started playing league lol.