The most important thing, irregardless of the type weapon you chose, is to develop good shooting techniques.
Find a good coach who will teach you the basics of shooting. Grip, stance, site alignment, breathing and trigger control. Once you have mastered these basics and started to develop muscle memory then and only then should you move on to more complicated drills which are currently in vogue.
You need to avoid those instructors who start you out on complicated drills with out first teaching the basics.