The deadline for making this decision is not now - it is at the beginning of the academic year after summer break. I hope that you will at least choose to go through CORTRAMID, which is intended to give you a first-hand look at what junior officers do in real life once they are commissioned. It is an integral part of the "first-year-free" test-drive. Right now, you can only make an educated guess as to what the Navy will be like and whether it is the right place for you to be after you graduate. Perhaps you will have a different opinion after seeing it first-hand. Or perhaps not, but in any event you can still dis-enroll before school starts without any penalty, and you will have spent a month living at the beach getting to ride on ships, submarines, planes - and even hang out with the Marines for a few days - with other mids from all over the country. It beats any other summer job that you are likely to get.
I am giving this advice from personal experience - my own as an AFROTC cadet almost forty years ago, and that of my son (NROTC) much more recently. Each of us initially thought that enrolling in ROTC was a mistake, and we each assumed that we would drop before our commitment kicked in. But summer training was a game-changer. It gave each of us the much needed perspective that ROTC is not, and is not intended to be, like active duty. The things about NROTC that you may find to be petty, inconvenient, or unnecessary intrusions into your other activities are going to go away once you commission- and then you will have opportunities and responsibilities that will be truly rewarding. You have nothing to lose by going to CORTRAMID, and I think you owe it to yourself and the Navy to do so before deciding to drop out of the program.