Want to know how to win more games?
Stop being so fucking spiteful. I cannot tell you how many of games I've lost in the thousands upon thousands of games I've played due to pure spite. People will flat out refuse to make the correct plays because they're mad about something. Whether it's a laner refusing to follow up on a gank because they've been camped with no ganks or a jungler refusing to gank a lane where the enemy is pushed up under tower and a free kill because the laner pinged the enemy, every single player in every single role does this shit all the time.
Fuck you, stop it and quit being a bitch and make the correct play. That's how you'll win way more games.