It's not necessary. You taught yourself basic and C languages, which shows that you are very talented. In college, you know, everything starts with the basics. You may be a freshman or a sophomore, but you haven't taught yourself like this. Personally, I think you should buy more relevant books and see if there are any night classes for special counseling.

Besides, 27 is a little old for college. It never occurred to you that you want to go to college now, wait until you come out of college, or want to further your studies. You have to wait until you are in your thirties. At that time, college students were everywhere, and you still had two diplomas. If you are an employer, you will not be given important tasks. As you know, college students nowadays are basically worthless.

You can use your talent to dabble in a wider range of fields. After all, today's society pays more and more attention to ability, has a little money, finds a way out for itself, and works hard while young. Maybe you will achieve something before you go to college.

This is my personal opinion, I hope it will help you. I wish you an early success!