Hi Alyssa, welcome to the community - and happy birthday
I would recommend starting by listing your existing skills and talents and try to brainstorm how those could translate into services you could offer virtually/online. In the meantime, think about getting an internship or job working in your school's office helping with filing, typing, etc. and learning more about what goes into an admin position. I know alot of schools take student volunteers in these kinds of positions, some even offer course credit for doing so. I know it's late in the school year, but I'm assuming you have another year left or will continue taking courses at a CC or university.
Another thing you could do is look around at the types of services other VAs are offering - specialty services like website development, real estate support, author support, etc. etc. and see what interests you - then find an online course or other opportunity to learn.
There are lots of tools out there to help you with the actual startup and set up of your VA business, that part is really just a matter of doing the work, step by step.
It sounds like you need to think more about just what kind of services you would enjoy offering and then take the next necessary steps.
Good luck!