How did you stop getting tilted at the little/big things

How do you react when your teammate is stealing your blue/red buff in front of you while last hitting it or farming the Jungle while you guys are contesting an Objective? Do you still get tilted or do you not care anymore because of the state of Game? I am still getting tilted even tho I am muting everyone. Their Actions are more tilting than getting comments like "role diff".