i've been playing pool for 12 years or so and became a pretty decent player over the years...and i always had a very high winning percentage...i quit for 2 years and just recently started playing again and it seems like i just take losing to well now and can't make myself win...i've played a guy a few times now who i should be beating and i can't win...he's not playing better than me but i just can't finish him off after getting a 3 or 4 game lead in a set...i just find a way to give it to him...i used to have a fire in me and wouldn't let myself lose...ANY SUGGESTIONS ON HOW TO GET THAT BACK?...thanks