LWS95,
I am an Academy grad who went Marine Ground out of USNA. I served my time, then made a decision to leave the USMC. I had multiple deployments overseas.
Like above, I will be blunt... If you think NROTC is going to be harder, think again. They are different, not harder, easier, worse or better, just different. USNA is a 24/7 environment, ROTC is not, unless you are looking at an SMC. If you are looking at an SMC for your ROTC, I think you will find your experience similar to USNA. Leatherneck is not OCS, it is not meant to be. Leatherneck's mission is to expose you to the USMC lifestyle, training, environment and to evaluate you. Essentially at the end of Leatherneck the Marines will evaluate all the Midshipmen and will know who they do or do not want. Our class had a much smaller percentage go Marine Corps than the current classes. We had 350 Midshipmen sign up for Leatherneck for 175ish Marine Ground spots. Guess what? They ran us hard 6 days a week and made Leatherneck tough. In fact I found Leatherneck a heck of a lot easier than TBS. They wanted natural attrition to reduce the numbers. In the end we had about 40 Mids who put USMC down as their #1 pick and didn't get it... this included 2 prior enlisted Marines they chose not to take.
The fact you do not go to OCS is not going to hurt you at TBS in any way. Actually I found Academy grads were more comfortable with TBS than any other commissioning source. We lived there, were familiar with a lot of the training and training areas, and were used to living a regimented lifestyle. TBS is only 6 months of your time though. Academically it isn't that hard, physically it had its moment, but nothing that was impossible.
Did you max your PRT at Navy? Have you tried the USMC PFT? Score a 300? You have a 4.0? Have you joined a team or club? If you haven't done these things then you have things to strive for. It is early in the school year, things are going to shake out still on training, academics, etc. Join the Semper Fi club. The one thing that I believe you will get at USNA compared to an ROTC program is exposure.... exposure to a lot more officers and enlisted then you would get at a regular university, the ethics and character development programs really make you think (not saying you won't at a normal university, but you won't get officers and enlisted joining your debates every class period). USNA is what you make of it. I think nearly every grad on this site will say that. If you want to push yourself, find opportunities to do it. Learning to follow is an important aspect of leadership. Right now you are probably learning what type of leader you don't want to be, more than what kind you do. That is important also.
It is early, hang in there push yourself. If you do what you need to do, you will get Marine Corps out of USNA. When you do your gray hull, ask for an amphib, learn how it operates, the importance of the Navy in amphib ops, hopefully you will have Marines on board and can spend some time with them.