First thing I'd recommend is some good reading material and/or a video or two. Opinions vary, but I like Byron Ferguson's "Become the Arrow". I don't agree with everything he says, but it's got some good basic information, and it's easy to read. For a video, Ricky Welch's "Instinctive Archery, Volume II".

Nothing personal against the man, but I don't suggest G. Fred Asbell. He does have some good info., but (in my opinion) he over-complicates some things, and to me his style is very difficult to be consistent with.

Once you get some basic information, you'll know what you need next.

Chad