Thoughts from a dirty Reserve hinge on the backside of 30 who was once where you are ('you' plural, not necessarily the OP): whatever you want to get, whatever you end up with, expect that you'll need to keep up that level of effort, or something like it, up until at least the end of your first fleet tour. Calibrate yourself accordingly. If you have no life and get jets, good luck; the difficulty only increases in Advanced. If you have no life in jets, and get your platform of choice after winging, good luck; the difficulty only increases at the RAG. If you have no life in the RAG, well, not only will that reputation follow you to your fleet squadron (and not in a good way), but you'll choke when you have to keep studying for your ACTC quals and be an officer at the same time.
At some point, the Law of Diminishing Returns comes into play. You can only study so much and have it be useful. After that, you're just jumping on the burnout train before you've even seen the ball-crusher that is the Fleet. Don't get me wrong, bust your ass. But pace yourself and don't obsess. You only get one shot at this, but there's more to life than getting your first choice every time. Fight for it, but don't sell your soul for it. Navy Air is a fucking incredible job. But if you don't take time to stop, smell the roses, and humble yourself, you'll end up as either a bitter civilian, a bitter terminal O-4, or the smug, arrogant asshole golden child no JO wants as their boss.