Horses are not cuddly like dogs and if they follow you around and want to stand close that’s a huge good sign. Watch them in a field. They just stand close to each other a doze. Inside each other’s force field or body heat. Sometimes they groom each other but mostly they take comfort in the proximity of those they trust.
It’s too soon to give up. I agree, fix the feet and see where that gets you
IME every new owner goes through a bunch of trouble, either behavior or physical or training or riding. Especially at the bargain end of things. At least now you know you are not handling her wrong and she is not “bad.” You have insurance. You will get through this and see where you are at after, and evaluate then.
You could buy a perfect horse for $75 k and have it rip a suspensory in the paddock in the first month.