@Shoompy32. Congrats! I hear you, this is indeed a very difficult decision, especially now that you have found a tribe at OSU you really enjoy. Both will get you to the same goal, commissioning as a Naval Officer. However, your personal balanced CIV/MIL experience at OSU maybe better. While, you will be more involved into Navy way of life including politics, culture, mandatory responsibilities at USNA. There are more you will personally sacrifice going to Annapolis, that's for sure.
I have DS graduating from Annapolis this May. Another, DD, a 4/C at an NROTC. DD also considered USAFA and USNA. When I ask them, would you like to switch places, they both said no thanks! They like where they are. Even though Annapolis was especially hard for the Class of 2021-2022 in every ways, my DS is very happy he's graduating from Annapolis. My DD, I don't know where to begin and end. She is truly in her element and loves her Battalion. And I gather, it is mutual.
If you have found something to love then hold on to it and continue to excel in it. If not, then it can be a good time to move on even if that includes pursuing your original aspiration. My DD rowed with a top D1 Rowing Club in the Westcoast during high school and received a Silver Medal in the US Open. But she found her niche in boxing. She boxed since 2018. She's only 5'6" and 120lbs, and not a pro boxer level. Yet, she really enjoys the sport and quite good at it. She practices with her Navy SEAL trainer 3-4 times a week at her Battalion. And after a month into their practice, about half of her battalion including her faculty OI's, MICEPs, and Midshipmen are training together. She's now a trainer to many of them. I think she earned her Battalion's respect last quarter. They made her Battalion Platoon Chief in charge of 3 Squad Leaders who are active duty Petty Officers and 4/C-2/C Midshipmen.
I don't think my DD can be persuaded to go anywhere but stay where she is, where she is truly happy. She does 65% of her activities together with members of her Battalion, inside and outside NROTC. She has other things she enjoys like core fitness, dancing, music, songwriting so she has plenty of other things she enjoys doing. I think, what she enjoys will be hard to do at Annapolis. One of her classmate also turned down USNA for her Battalion. But there were also 2 that turned down her BN and went to USNA.
So, if you think you have all the elements to succeed and enjoy at OSU, you may want to stay the course. Otherwise, I am certain you can find many things at Annapolis that will keep you busy enough and challenged while getting the coveted USNA degree. You are actually the best person to help you make this decision!
Good luck on your way to commissioning!