I've shared this letter to Dear Abby with others over the years who have had the same concerns as you, UT.

Dear Abby: I am a 36-year-old college dropout whose lifelong ambition was to be a physician. I have a very good job selling pharmaceutical supplies, but my heart is still in the practice of medicine. I do volunteer work at the local hospital and people tell me I would have been a wonderful doctor.

If I go back to college and get my degree, then go to medical school, do my internship and finally get into the practice of medicine - it will take me seven years. But in seven years, I will be 43 years old! What do you think? - Unfulfilled in Philly

Dear Unfulfilled: And how old will you be in seven years if you don't go back to college?