I agree that a field in which you might be able to educate yourself might be a good one. As far as college not being challenging, I won't try to tell you that every college class is going to exercise your brain - it won't. But you can pick and choose many that will. There are several web sites such as ratemyprofessor.com where you can read reviews and choose the ones that are considered difficult. It also depends on the major that you choose. Obviously, some are more difficult than others. I majored in Physics in college - and while my junior year of college was the first year I ever took a class that was difficult enough to make me cry, I was happy because it was ALWAYS a challenge. If you can find a subject that interests you and is challenging, you will do just fine in college.
