1. Take a short break, sit out directly and analyze (objectively) the hand history in the sites Replayer.
Mark the hand for further review (ICM-tool/GTO-Tool)
2. Take a note from this analysis result to the players in the hand. Also mark the Hand Good or Bad.
3. Don't chase losses against players, try to keep your EGO out of the game and your decision in further
hands.
4. Good Bankroll Management, with strictly applied Stop/Loss limits and strictly applied rules for going up and down in stakes/buy ins.
5. Acceptance that you will never be able to win the majority of hands.
6. Studying your tilt (this is done off the tables), what is the obvious reason for your tilt, tilt has a lot of reasons obvious and very deep hidden ones, like private or job problems.
7. Try to find more routines to handle your tilt, than the above-mentioned (mantras, yoga, ice baths, autogenic training)
8. Read Jared Tendlers Book “The mental game of Poker”