How do i become a professional golfer?

Work hard. 4-5 hours of practice 5-6 days per week. Spend about 40% of your time on short game (bunker shots, chipping from rough, 50 yd. pitches), 20% putting, 20% on the range working on shot shaping and distance control, and the rest on playing on the course. Get lessons, get fit, and best of luck.