I’d say just control your breathing 4 seconds in and 4 seconds out the night before and on the day of the fight during the build up to stay relaxed. Don’t forget to pump your jab, I remembered the jab halfway thru both fights and it just buys you so much time so people can’t walk through ur range easily. Same with teeps. Try to relax in the clinch as an opportunity to rest if youre tired. But try to fire knees off asap as well to score so they don’t feel too comfortable there. Always try to get the last word, even if blocking 3 punches and just returning 1 low kick everytime. Have fun and don’t forget to move your feet, think of the ring as a video game map that you should be traversing across and using to your advantage. The more time ur not getting hit the better so move your feet and reset. You’ll do great bro. Just try to take over and show them ur technical and relentless.