Played my first USTA match today. I need some match experience so i guess USTA is a good choice. My opponent was 6' 4, hit big serves and volley, first serve probably in 100s, 2nd serve probably around 80. First time i returned his serve, i almost dropped my racquet. score was 3-3, and we had a little dispute. It was my 2nd serve, i thought i heard a let but i kept moving, waiting for his call. He hesitated a bit, but continued the point. I lost rhythm and fenced the ball. When the point was over, i asked him was it a let cord. He said thats what he thought, but no replay because he didn't make the call during point or watever reasons. needless to say, i was furious. i am not very experienced with that kind of situation. first time ever , i told myself that i was going to destroy the guy. So i was playing some nasty tennis, stuff i never do when play with my friends. Hitting straight at the body a couple times when he rushed the net. At one point, he twisted his ankle. Then I started playing slice / dropshot, then lob. It was not fun for him. Is there a way to get fire up like that in every match?