Hi there, yes I do live in Savannah! Where in Georgia are you?
I was not clear from your post whether or not you actually got certified —was it during your open water certification dives that you did not finish the dive? If so you will still need to finish your certification, otherwise you’re now a certified diver. It sounds like you do need work on your skills, but this is not uncommon for newly certified divers.
Try to find out if there is a dive shop near you that allows you to practice in their pool and start there. Inquire at the local dive shops what their pool practice policy is and choose the shop that allows you to get wet! Another class, advanced open water for example, or peak performance buoyancy, will get you practice with an instructor. Relax, it takes time to get comfortable scuba diving and you are just at the beginning of your adventure.
From Georgia it is not a long drive down to Ginnie Springs where you and your buddy may also practice in an open water environment that is very much like a pool (as long as you don’t go into the caves!)