I have been playing tennis about 4 years off and on. My groundstrokes are fairly good. My serve and technique are usually commented on as being nice (not bragging). But my jitters have just completely taken over my game. Its the worst in singles. I absolutely can't function sometimes in matches. I need advice on how to handle this. I'm pretty desperate because I am being beaten by worse players. My post on this comes from a string of losses in the local league I play in. My nervous problem has really become a serious problem with me enjoying tennis. Could guys/gals please offer me some advice on this? I'm pretty low, confidence wise from this.