Interesting things I've learned about myself that made a big difference in my game:
-Think birdie, or at worst, easy par. Get into the mindset of scoring. Pars are your new bogies.
-Beer has a deleterious effect on your golf game. Save it for after the round.
-Stay hydrated, and eat light (both salty and sweet) snacks to maintain alkali and sugar levels.
-Take a juicy orange, and eat it if you feel you're hitting an energy low and need a quick boost.
-Take a long walk or hike the day before your tournament, and don't throw anything. It will warm your body up, without stressing your muscles.
-Your putting game will improve phenomenally if you can park your upshots. Upshots are the difference between AM1 and AM2.
-If you only play competition rounds, but you don't play practice rounds where you go for risky/difficult shots (especially putts), then your game will never improve.
Drivers: Starlite Wraith (158g), Gummy Champion Leopard (150g), 1st Run Z-Talon (150g)
Mid-Range: Star Classic Roc (146g), R-Pro Roc (157g)
Putt/Approach: Legacy Protege Clozer (158g), Glow DX Aviar (150g)