No worries, treat it like a learning experience.
You're a plebe at West Point? It's way, WAY to early in your career to worry about what you're going to be doing after your two years as an SF team leader. And, as you recognized, it comes across as awfully presumptuous to assume you're going to make it that far. Most people never do.
As you know, you can tap out at the Academy any time up to the first day of class your Cow year. I suggest you take some time and think about what you want to do with your life. If you want to enlist, save the peoples' money and do it early and don't soak up all of those resources that are going to be going towards making you an "O." If you're committed to staying at USMA and also committed to serving out your five year commitment, then I strongly urge you to consider focusing on the things that will make you a good cadet, student, and officer, and stop worrying about the "sexy"stuff that you may or may not be able to do later.
In the meantime, here's a related article you might want to read and consider.
A Message to Cadets: Be the Best “That” That You Can Be, On Branch Night and Every Night - Modern War Institute
Good luck at the Academy and in your Army career. Thank you for choosing to serve, and for joining the site.