HI Raq
Just like in real life, you get better with focused practice. Tiger Woods could take walmart clubs and beat the pants of 99% of golfers out there, where I could but 5k custom clubs and balls and not stand a chance.
Really work on your putting and shortgame and your scores will get better rapidly. I posted some putting tips here http://wgt.com/forums/t/55576.aspx
Welcome to the site, goodluck and enjoy the game
Dianne