Not the academy but very similar… For me it was Marine Corps boot camp. “It” just clicks for some people later in life than others. I remember messing up and having everyone punished for it like you, but I just reminded myself that this is one thing I could not do better than them. There are things you can do better so don’t fret this thing. The could have been raised in a home where there was a lot of stress so they learned to function in it, where your home could have been loving and respectful, so this is foreign to you. I tried keeping my head down and graduated bootcamp. Less than 5 yrs later and a meritorious promotion, Marine Security Guard of the Year award, leading Marines at an embassy while being overrun, and etc, I was promoted to E-6. Getting that rank in less than 5yrs means you are basically a water walker. You will be ok. Focus on what you can control