Why cant I stop tilting?
Just stop and think and ask yourself why your opponent moved their piece there, what is the purpose of that piece there and how it will affect you.
When you make a move, think if that piece contributes and benefits you and if your opponent can take it.
This happened to me too. I moved recklessly and didn't think about blunders. A guy told me to take my time and think. After 3 games, even though I didn't notice the imminent checkmate, I did a genius move, which helped me save the game.