For what its worth, I also started 2 internet companies while in high school and have been a passionate entrepreneur since. After much deliberation and discouraging (not a typo) advice from those around me, I went back to college after 1.5 years in industry to get my degree, knew what I wanted to study, finished quickly and paid for a majority of it on my own. In a few cases, I even finished just as my friends who had gone straight through after HS. I had some real-world experience and knew what I wanted to study. I did serious research on degree programs and studied exactly what I wanted.
If you are up for it, college is a different kind of challenge that is hard to recreate. It requires a lot of "work" but its satisfying to move toward a long-term goal and finish; very similar to the satisfaction of building/launching an app from nothing. It requires discipline no matter who you are (entrepreneur or not) to get through college or school.
Quite simply: I wouldn't go if you expect to get professional experience or learn more about CS, I would go to learn and have fun but know that it will get harder for a lot of reasons to go back later (mostly because you won't have as much fun). ;)
Just like you I thought going away for a few years would make or break me professionally. I guarantee not much will change and you won't miss out on ("waste") as much as you think you will.
All the best.