I've never had so much bad luck in my life

Idk what in the hell is going on the past 2 days, but I just can't seem to get one decent team. It's like If I play top the bot lane feeds, and if I play mid the top lane feeds, and if I play bot the top lane feeds. It's so infuriating to play with some of these people that just can't get a clue that hey, we are being camped, maybe we should NEVER try to engage the enemy when they are playing fishy and extending when they shouldn't. Even If I play roamer champs like Kassadin or Akali it's always too little to late cause they end up feeding before I even hit 6 and then going bot is just giving them a triple kill. It's hard to have map presence in all lanes and still win a game.

TL;DR I'm trying to stick to my main champions but I'm just having the worst of luck winning with them. Example Kassadin when I got out of Bronze I had a 90% winrate on him sitting at 10/1. That has fallen to about 70% now, no matter how good I do or how good I roam, some things are just impossible to carry.

No this isn't a QQ thread, it's just a venting thread. Thanks