Answer:
Practice and lots of it. I used to bowl 10 leagues a week, two leagues a night, 5 days a week and was a substitute 6 out of the 10 leagues. bowled for money (pot bowl) on the weekends and that's what paid for my regular leagues for the next week. I started out with about a 140 average and was at one time holding a 202 average. My high game was a 290, 11 strikes in a row which was really good back in the late 80's early 90's. So, Practice often and concentration is definitely a must. Good Luck & Good Bowling!!!