Think about what you wrote in applications for nominations and admissions - no doubt your dreams and thoughts about service, leadership, holding yourself to a higher standard, working hard alongside like-minded people, becoming an Army officer. Has anything changed there? You have run smack into the reality of Service Academy life. It’s real, it sucks, it’s a grind. But it does get better, and you too can dig deep and do this.
Is this a matter of will or skill? Are you unwilling to do what it takes to achieve the dream you talked and wrote about during the application process? Or is it that your skill set is not sufficient at this time to place you at the top of the heap, which you likely inhabited in high school, and you are struggling with being “average” (quotes because you’re in a fairly rarefied group of peers).
Take a deep breath, try to assess if this is a transient feeling or you really, really made a mistake in going to USMA. Even if you did make a mistake, be practical and walk away with at least a semester of credits and some time to organize an alternative plan for your education. You’re a young adult now, so it’s time to create your own solutions, take responsibility for decisions and their impact on others. Having a solid plan for your next steps will show your family you are thinking about the impact on them (they thought you were well-launched and almost out of the nest) and ensure you don’t flounder on your educational path.
Now, if it’s a family crisis at home or there is some other reason that would make us all say, “oh, of course, you must leave USMA,” that’s understandable. If it’s not you want to leave, but must leave, including if it’s a fundamental mis-match between what you thought you wanted and what you got, I wish you the best.