I hated it here plebe year, and I absolutely doubted my commitment. By the end of Beast, I had already resigned myself to leaving after my first semester. I was sucking at Chemistry and, after my instructor told me that she would recommend me for separation from the Academy, figured I simply was not cut out for this walk of life. That feeling, coupled with the homesickness and the eventual ACL tear that I sustained only exasperated my hopeless state. I went home that Christmas with the intent of not returning.
But after a few weeks home, I was re-energized. I resolved that if I was going to leave the Academy, I wasn't going to let it chase me away— I was going to leave on my terms. As time passed, I became progressively more comfortable. More time passed and things became easier. I no longer was incessantly homesick. I enjoyed the independence that the Academy gave me. Most of all, I dug my way out of the academic hole that I found myself in. Ultimately, I began to enjoy life here. I still do, despite a lot of the hardships that come our way.
To answer the question of why I stayed here, there are three quotes that come to mind.
1) "Fake it, 'til you become it." A derivation of "fake it, 'til you make it," I began to work on self improvement. Even if I wasn't the smartest, I wasn't going to let that be the end for me. Eventually, I believed I could do anything. I still do.
2) "You gain self esteem by doing 'esteem-able' acts." My confidence grew the more time I spent here. This quote really drove me to do my absolute best, even if I hated what I was doing.
3) "Get comfortable with being uncomfortable." This one is mine. I've told my subordinates this each year since I was given the privilege of being a team leader, squad leader and hopefully platoon leader this coming semester. Put simply, you got to learn to love the grind. Even when you're sucking, smile. It's all you can do.
Best of luck!