Welcome! My advice is to build up coping skills. Most likely, you can do different work (or at least thinking) as you sit through a class you find boring because you already know the material, and that shouldn't impact your grades, since you already know the material. I wouldn't worry too much about being able to be challenged. Research schools to find ones with strong physics programs, with renowned researchers and professors, and go there.
If you're worried about money, focus on getting scholarships. I have to think that if you make a go of it as a quantum physicist, at some point you will get fellowships or grants to continue your work, and will at least be able to live decently enough. Regarding school debt, does it matter much if you're doing work in an area you love passionately?
There's no way around the need for patience; simply focus on becoming more patient, and it should come with time, although you never know.
I know how tough social anxiety can be to deal with, as I have it myself. My hope is that college will be a great experience for you, and help you to open up a bit.
