i hav never played this much worst in my life###

I think that if you let your sour emotions get to you thing may only get the better of you.Practice,Practice,Practice!!! Go back and practice the basic skills that you've learned. and rebuild some confidence in yourself.It is possible that you've developed some bad habits or subconciously forgotten some of your early training and development skills in the field of Table Tennis. I have played the sport of Ten Pin Bowling off and on throughout forty years and average just short of a professional level (200 avg.), But there are some nights that I can't seem to bowl a strike two times in a row with a hurricane behind me.Have I lost the skills required to accomplish this? Definetely not.Either it's a bad run of luck or the more upset at the failure makes matters worst. It is just better to relax the mind,Concentrate on the basic skills and come back for a better day.