I think it's amazing that you're interested in studying art and drawing. Though I don't know anything about the specific school you're referencing, I can speak to my own experience! Growing up, I was always interested in art and knew it was something I wanted to turn into a career. I went to a state university and pursued a degree in studio art. While I was there, I honed in on my skills and found various fields in art that really interested me, particularly graphic design. Throughout earning my degree, I took on internships to learn more and grow my skillset. The combination of a formal education and work experience (learning on the job) really helped me gain confidence, improve my art skills and gain more inter-personal skills through working with others in a formal setting.
If you do decide to pursue a formal education, I'd suggest working on the side and continuing to practice your drawing as a hobby. This will help you build your muscle and define your style and what you're interested in!
Hope that helps!