What Some People Need to Hear
It's a pretty common sight around these boards to see people who are just raging about Champion X, or that their teams always feed and they cant't climb and this game sucks and blah blah blah.
Quit playing. Seriously.
Go play some other games for a while. There are so many good games out there to play that if League is just frustrating the fuck out of you, there's no point in wasting your time and getting upset playing something that's pissing you off.
I just came back from about a year break and it was a really good decision for me. I played a shitload of Rocket League and Smite and a bunch of other random games intermingled in there and had a blast. I finally decided to reinstall League a couple of weeks ago for shits and giggles.
Honestly, I don't really understand lethality, there's like 3 new champs I still don't fully know what the fuck they do, but overall I have been having a blast now that I'm back in it. Which is definitely something I could not have said before, because League was pissing me off royally any time I tried to play ranked solo queue.
Something about this game seems to make it hard for people to walk away from, at least it was for me. But you aren't gaining anything by bashing your head against a wall to play a video game that is supposed to be fun but just isn't fun for you. So go play some other games and experience that awesome stage of going from total noob at the game to getting good and enjoy the ride and then come back.
Sure, you might miss out on some things but League isn't going anywhere and it will be waiting for you when you come back.
Side note: Got ganked by a Kayn last night for the first time and thought I could kill him, had this fucker literally go out the top side of the map on me (was playing Top Lane) and come back in and kill me. Needless to say, was pretty god damn surprised and annoyed at the same time by that one.