My ds was really undecided. He enrolled in the community college, dropped out almost immediately, then tried another school, and dropped out again. He's smart and talented but was at a loss as to how to pursue his education.
Finally, after some long talks, we arrived at this: There was a gentleman we knew of, who was in a particular skilled and technical profession, and my son said "I want to do what he does, but I don't know how to do it or what I would need to learn. But I KNOW I want to be what he is, but I don't even know what it's called".
Aha! A light shone.
We called the gentleman, asked what it is that he does, he was very gracious in giving our son pointers on schools, certifications, etc, and what his type of engineering is called and so on.
We found the college that focuses on that, and my son enrolled and now has graduated with a near perfect GPA and absolutely loves what he does. He never looked back or even considered changing his mind. When that man explained what he does, and how my son was well suited for that, the floodgates opened.
So, is there a coach or teacher who has meant a lot to your son? Or a doctor or sports clinic or trainer who has had a good influence? Is there someone about whom your son could say "I would love to help other kids like he has"? Could your son talk with him and pick his brain a little? He might have some good insight into what kind of athlete your son is, whether he might make a good teacher or a better therapist, or he might have advice about what careers are better, etc.
Hope that helps!