First of all welcome to okshooters! If funds permit, you might consider purchasing a full size handgun to learn to shoot with. While it is important to train with the gun you will eventually carry, a full size weapon will be easier to begin with. Once you are well on your way to becoming an expert marksman, you can then move into a compact or subcompact handgun for concealed carry.
If funds do not allow the purchase of two weapons, I suggest a medium size frame (compact) weapon to bridge the size gap. For example, my first weapon was a Glock 23 (not the biggest Glock and not the smallest). It was big enough for me practice comfortably, shoot local IDPA matches, and still small enough to carry concealed. years later I have numerous handguns, but if I were buying my first weapon again today, and only had money for one, it would be a Glock 23 (I don't have big hands either). I am also a fan of the Springfield XDM which has interchangeable back straps on the grip. These are just two guns that I feel are dependable and a great, great value for the price. Listen to all the opinions offered and shoot everything you can for yourself. Feel free to PM me if you want to chat.....best of luck!
If funds do not allow the purchase of two weapons, I suggest a medium size frame (compact) weapon to bridge the size gap. For example, my first weapon was a Glock 23 (not the biggest Glock and not the smallest). It was big enough for me practice comfortably, shoot local IDPA matches, and still small enough to carry concealed. years later I have numerous handguns, but if I were buying my first weapon again today, and only had money for one, it would be a Glock 23 (I don't have big hands either). I am also a fan of the Springfield XDM which has interchangeable back straps on the grip. These are just two guns that I feel are dependable and a great, great value for the price. Listen to all the opinions offered and shoot everything you can for yourself. Feel free to PM me if you want to chat.....best of luck!