then you need to make sure that in the future, especially when playing in casinos or for big hands, when you feel like you are making a stupid decision and letting your emotions get the better of you, stop and think before you play. put yourself in the best position to win the game and then act accordingly.
this may sound silly, but it is a tip that has allowed millions of poker players from round the world save more chips and bid them on hands when they have a better chance of winning and make more money.
being on tilt is natural; you just need to learn how to control it 