i only started seriuosly pistol shooting about 4-5 months ago, this article really helped, especially the 1-2 drills. im no master at it, but ive gotten purty darn good in a short amount of time. just keep practicing, it took my fiance a good 500+ round just to keep it on the paper, and 1k later, she does well enough to protect herself.
http://www.best9mm.com/shootingtip.html