Like legitimately 60-70% if the games I play are decided by which team is more happy to fight when there are clearly or likely more of them than the other team.

A lot of times you just can’t control that when other people on your team do it. But I genuinely think a key to ranking is to make sure that you NEVER do.

Look at the minimap. If you have somehody pushing out a side lane, don’t fight. Don’t push up to where you can get engaged on. Don’t push up to where somebody could flank from the fog of war.

Just back up and clear waves. Ward the map where it’s safe. Stop trying to ram down mid lane with three of you when your jungler is coming back from base and your solo laner is pushing out a side lane that was pushed all the way to your tower. Just chill TF out.