If you're verbally attacking your teammates, you need to put the game down for a while.
Maybe people are grinding to get their end of season awards, or maybe you had a tough last game, but if you're attacking your teammates in chat all game, you need to put it down for a while. Go outside, read a book, cook something to eat, whatever. But one thing you shouldn't be doing is playing the game making you that angry, and ESPECIALLY not ranked.
I've seen this too often from players that harass either me, or the enemy harassing their team, and you check their record and it's a string of losses. Continuing in that fashion isn't going to help anything. You obviously need a break or it's going to only get worse. But serioulsly guys, at the end of the day, it's only a game, yes even in ranked. We all get angry, but yelling at your teammates, the people that are supposed to be helping you win the game, isn't going to make anything better.
Just thought I'd throw this out there as I've had it happen a bit too many times in recent games.