A gun safety or conceal carry class is a very, very good idea.
My wife also practiced with a friend of ours who is a NRA safety instructor and he let her shoot a variety of his hand guns.
There are a lot of good gun dealers that can help you. If you get a clerk that doesn't want to be bothered go somewhere else.
I have two 9 mm Ruger semi-automatics. I chose them because they are comfortable in my hand. I don't feel safe with something that feels "awkward."
My wife's hand are not big and strong enough to shoot my guns. Limp wristing is a phenomenon commonly encountered by semi-automatic pistol shooters, where the shooter's grip is not firm enough and the wrist is not held firm/straight enough to keep the frame of the firearm from traveling rearward while the bolt or slide of the pistol cycles. So the gun does not reload properly & jams. She has a .38 special revolver, which has more of a kick, and a couple of .380 semi-autos, a Smith & Wesson M&P Shield EZ and a Browning 1911 .380. Both of which work fine for her.