Hippiechick,
Go shooting at several different ranges in your local area and attend some shooting club meetings. Look for a mentor. A mentor is not someone that tells you what to do, but rather that uses his / her greater experience to help you plan your search, define your most important criteria, and organize the information you encounter. The mentor has or knows friends that have many different firearms. In fields with a significant learning curve, finding a mentor is a key success factor. Don't be afraid to abandon your first mentor and find a different one. The teaching relationship has to work for you and you are the sole judge of "work".
My opinion:
1.A short-barrel revolver has the advantage that it can be left loaded for a long time. No springs are compressed while loaded, so no risk of springs taking a set.
2.Revolvers are more intuitively obvious.
3.Start shooting with a .22 caliber (but it might be your mentor's gun).
4.Don't be overwealmed by windbags or self-proclaimed experts, of which there are many.
It's an adventure in learning. Enjoy