How to regain your focus in game

So in games I have a tendency to lose focus when my team starts to lose, usually when I lose focus I see every team fight as a way for me to get kills so I dive without strategizing without knowing the consequences or power that the enemy has and my map awareness usually starts to suck

I most of the time play in jg and when something happens like my team ints or I keep getting invaded I get tilted and start losing, my main concern in the game is counter ganking and csing. The worst way possible to make me tilt sometimes is when teammates int, sometimes I flame them in chat and then I lose the game a pretty standard scenario of what happens in league games sometimes

So when a lot of these factors happen to make me lose focus what should I do to regain it or what should I focus on when I start to lose a game?