Shelby, you are about to get a whole boatload of new family members, some of whom will be your friends for life. The Armed Forces have been a way out and up for many, so take advantage of every bit of it. We had a sponsor son from a very challenged family, involving incarceration, foster families, a younger sister pregnant at 13 and not many options. He was a NAPSter, made his way through USNA with a few academic struggles, served proudly in the Marines, and now owns his own business. He also takes in nephews and nieces from back home who are facing challenges, and mentors them. Good luck to you and keep us posted on your progress. Down the road there will be other NAPSter's and midshipmen's parents of roommates, teammates, companymates or classmates who will just sweep you up into their family and spread around the love.
Navy16, some good posts here, just put your head down and keep plowing ahead a day at a time. Believe in yourself, envision your success and it can all happen for you. Perhaps at a quiet time for conversation, maybe during a walk or other activity, you can ask your parents what specific concerns they have, whether it's academic, self-discipline, maturity or whatever, in the context of an adult give-and-take conversation. Listen to what they have to say and let it digest a bit, without immediately reacting. Tell them you have heard what they said, and ask for their support for you to at least try this path, recognizing they have areas of concern. The Navy has years and years of experience of choosing people on whom to take a chance, and they have given you a vote of confidence by selecting you. They think you can make it; the rest is up to you!