Share with you what I shared with my daughter when she was learning to shoot. Get out there and shoot. When you can hit your target 10/10 at 25-30 yards, back it off to 50 yards, when you get 10/10 at that range, back it to 75 yards, 10/10 go to 100 yards. The way to get better is to put lead down range and hit the target. Use paper to begin with, so you can see where you are shooting. Once you get consistent on paper, you can move to swingers or other reaction targets. And dont be like all the other range jockies that use sleds, supports etc. Shoot from a standing, unsupported position. Its the toughest, so practice it.
When you get a little practice in, join a metal silhouette shooting club, and you will get alot better and you can get advise on how to perfect your shooting style from people who can watch you and give you solid feedback.
Best advise though, is to get out there and be safe. Remember your safety rules and have fun.