The ITTF Advanced Training Manual lists 12 elements to mental success in table tennis.  Quiz yourself to see how well you are doing on each aspect.  Take 2-3 minutes to ponder each point.  Ask yourself how well you are doing on each point during important tournament matches.  If you aren’t doing well, ask yourself how to improve that aspect. 
 
1. Physical relaxation – muscular tension is closely connected to miserable performance.  On the other hand, feelings of relaxation are associated with top performances.