OP the only person who can limit what you can do IS you.
Going to school will provide a better economic status and that is a step in the right direction.
Make a plan write it down and adjust it as you achieve each mini goal on that list.
You can dream as much as you want and you CAN realize your dreams. Not without sacrifice or planning. Even those who are blessed with good financial means have to do those two things.
Nothing in life worth doing is going to be easy.
Good luck and dream big. Shalom