None of us grads knows what it's like to endure USNA during COVID. However, all of us have been on deployments -- 6 months and often longer. As officers, it's tough but not too bad. It can be really rough on junior enlisted personnel who are working long hours of shift work, sleeping under a catapult, trying not to be sucked into a jet engine or thrown overboard by engine blast, and who may or may not have port calls. And who are making a whole lot less money than the officers. Those are the folks the mids will be leading.
Then there are the officers and enlisted of my dad's generation who went off to WAR and told they would come home when the war was over (and hopefully, we won). It was 4 years for my father as an enlisted Marine in the Pacific theater. That was tough!
I realize today's generation is different. But if mids can't "take" this level of stress and discomfort, they are really going to struggle in the Fleet.
The above said, I fully echo the sentiment that, if someone is struggling emotionally, he / she should reach out to a chaplains, psychologist, professor, mentor, etc. Get help first and then sort out whether the military is the right place for you.