Its been around 15 years since I competed in semi, Knock Down and JuJutsu tournaments. But a few things did me really proud in all formats, 1. Breath, lots of air! 2. take the first point, land the first significant hit, throw etc, the mental edge this brings is usual significant 3. Remember its a game, and always maintain a decent sportspersons attitude, tournaments have a habit of turning otherwise decent folk into proper idiots........ Ask yourself why your doing it, and prepare for it with a decent coach and training partners- otherwise just rock up and have a go, but don't expect the win, enjoy the day for what it is.