Play lots more rounds. This game is not your average online game It can bring even the best players here to their knees. I know lots of other games that I have mastered in only a few times of playing but I have 920 or so ranked rounds here and still have trouble from time to time. The community here is very competitive (me included) and for the most part wouldnt have it any other way. The one thing I can promise you is the more you play the better you will get and just when you think you have figured it out you will soon find that you are wrong and will have seemingly start from scratch. Hang in there and practice, practice, practice. Good shooting and see you on the course.
Jason