A college degree-- even a 2 year Associate’s Degree- is, at a minimum, insurance. If your career in YouTube doesn’t work out, it will be a whole lot easier to get another job with a degree than without it. It doesn’t really matter what the degree is in.
So consider a 2 year degree in game design. Or in finance. Or in just about anything. You can go part time if you want, so you still have lots of time to devote to You Tube. But, like most of the adults (who are admittedly biased evidenced simply by our participation on College Confidential)-- I suggest you get a degree in something.