How do I get into a good college with a 3.47 gpa?

I’ve always had anxiety disorder, which causes me to screw up tests badly even though I’m well versed in the subject. (So this explains my crappy gpa) I like art, drawing and making things, but I feel like I’m not good enough to go to a good college, plus it scares me that I’ll become a starving “artist”. I also got into neuroscience, and I’m very sure I am very good at what I like, but my grades kinda hold me back. I’m always studying neuroanatomy, and neuroscience in my free time, but it doesn’t reflect on other subjects in school. I feel like colleges won’t want me. I’m so scared.