What should I do for a living? What should I go to college for?

I am a 22 yr old male from Barrie, ON. Currently, I am a sales rep for a large home reno chain. I like cars, computers, gadgets and the like. I prefer thinking when working, and am willing to relocate. I have NO education since high school because this has been bugging me since I went to school. I do not know what to do! I worked as a auto tech for four years and fell back on sales because I can do it easily, but I dislike both very much. I want to go to college, but have NO IDEA what to go for. To date, I have been accepted (but chose not to go because of indescision) to medical school (family medicine), law school (eventually to become a lawyer), business management, marketing, advertising and design, Film school, and any course at Internation Academy of Design and Technology. I don't mind dangerous work and am comfortable doing pretty much anything I have ever been asked. I have the money to go to anything I want, but can't decide if anything above, or at all is right for me...