Tie breakers is what builds mental toughness period, although short, you know every point counts, you either try to be extra careful, by just getting the ball in, this is all fine when you are trying to build your confidence for a 3.0 player, but when you hit a strong 4.0-5.5 this is where you learn how to build points, or set up a rally, attack a short ball, go for a winner (sure win/die, but if you don't try how to know your success rate) learn to come to the net to end points faster.Slowly once you get better, play a tie-break give handicap to the other player, say 2 points advantage, learn what you can, then sometime when you play sets, play server has 1 serve, no 2nd serve, this teaches the server NOT to just hit a flat serve, once he learns some form of 'spin' albeit slice, top,kick,twist. He builds the point, if you lose learn from mistakes, you are bound to build confidence in some way. Naturally this takes time, for a player to get better, but guess what, say one day you're playing a match of your life, 'chicken rice' for the winner....you can tell yourself, BWAHAHAHA this is MINE!!! Get 80% of my serves in at 3/4 pace, start a rally, either wait for error, or wait for the short ball to either go for winner, or slice it up the line, and attack the net, you will be eating free chicken rice sooner or later.....

But of course there is no real need to play for anything, but an incentive always helps, doesn't it. Heheheheh