If you have doubts about your skills as an artist while doing an arts degree, maybe it is time for some introspection. Considerign the nature and value of the degree, if you aren't getting near 100% out of it, without any doubt, maybe an arts degree isn't for you.

To me, one should only do an arts degree is the passion is so big, there is no way you can do anything else. That's what many great artists advice.

If you are a great artist, having an arts degree won't help, not having it won't hurt.
If you are a poor artist, the same.

It is best to be a great artist with a professional career in some other field. That way, you can only make the art you love and you don't have to become an 'art mercenary', wasting creative energy on stuff your heart and soul isn't into. You can earn money in your professional career, and make art for the sake of art in your free time.