Let me see if I can help! I just finished my first (fourth class) year and will be going back to start my third class year in about a week (scary I know...summer flew by). I can understand you being nervous about swab summer and your 4/c year. Everyone is...R-Day is one of the most stressful days. But I can promise you that thousands of people have completed swab summer and 4/c year, people who were probably just as nervous as you. I won't lie, the first year is a challenge...but that is because it is supposed to be. Not only are you balancing a heavy course load but the military and athletic aspects as well. There are some days that seem like they will never end.
BUT...I can promise you that the experience is once in a lifetime. I love the Academy and I have fun while I'm there. It is supposed to be stressful because our future careers will be stressful and we need to know how to deal with that stress. Three years from now, I will have people that I have to take care of, people who are going to trust me to make the best decisions I can.
But back to the fun part. Here's my summer in a nutshell: I sailed across the Atlantic Ocean and went to Ireland, Germany, and England. Then, I flew to Hawaii for six weeks and worked at a small boat station. I was involved in boardings, flight operations, was pepper sprayed, and countless other experiences. Now I am home for three weeks and enjoying friends and family.
If you feel it in your heart like you say you do, then I would really encourage you to pursue the Academy. It sounds as if you could do well there, you seem to want it. Don't let your fear of just one year get in the way. You can do anything you put your mind to, as long as you stay focused and determined. And people will be there with you every step of the way. You won't be alone, you'll have over 200 other people going through the same obstacles you are.
I hope this helps a little bit, sorry that it kind of jumps around. Did you have any specific questions about the Academy? I'd be glad to help!
-T&F