Hey guys I was playing an U18 tournament this weekend and I won my first match 6-0 6-4. The problem starts with my second match. I'm playing a kid who's top 80 (18s) in New England and i'm top 150 in the 16s. I started out alright trading games until i broke him at 3-3. I held to make it 5-3. He was playing his best and i was around 70-75%. I should have ended it there, but ended up losing 8 straight points to make it 5-5. I broke him at love again and lost my serve to take it to a tiebrake. I could have held twice or broke once and the set would have been over. In the breaker, i had 4 set points, lost them all, and he won the first one he saw. I ended up losing my cool and lost 6-2 in the 2nd. I probably should have won 3 and 2, but i lost because i caved in to pressure. Any ideas how to deal with this problem. I do about 2-3 tournys a month and do a match play session every weekend.