Anyone have any adviceon how to play the mental game? It seems like, even if I'm playing the best tennis of my life, my mind still creeps up on me during matches. Like when I'm playing my dad, I would be up 4-2, pulling ahead and then I lose 4 games in a row to lose 6-4. Or I would be playing with one of my friends, I would be up 4-1 and then let him come back to 6-5 before I regain composure and win 7-6. You might think immediately, I give up, but I don't know why that happens. I want to win, I know I can win, but yet I can't. It's especially prevelant when I am playing someone someone who is equal or better than me. Even if I know for sure I can win a match, and I'm playing better than them that day, something just happens to me and I lose the match. And another problem I have, is that sometimes I lose my strokes. I literally would forget how to play tennis. This past year, for about 2 or 3 months all I could do was slice the ball, i LITERALLY could not hit a flat shot, or any of my normal shots. But then eventually, I get them back even better. (And yes, I tried to lay off of tennis and be relaxed, that didn't help much) I want to get "The Inner Game of Tennis" or "Winning Ugly" but I want to see if I can fix this myself first.