Oh, and something else that I thought about. Learn your pain triggers, and anticipate them. Me, I can tell when a bad storm is coming because I hurt all over, I move slower than usual, and as coworkers put it, I "just don't look like [myself]." So I make sure that I have warm compression clothing to wear under my scrubs for those bad days, and take OTC pain meds. Brain fog? I have a different type of nursing brain, one that doesn't go into all the details that the usual brain does for an inpatient nurse, but it keeps me on track through my day.
Now, nursing school is a whole different kettle of fish. You know how you best learn, so use those study habits that you already have. Good compression pants will work wonders for clinical rotations, as will a regular exercise/PT regimen. (I know, so easy to type, so hard to actually do.) Try not to shout out that you have loose joints, because that puts you on the radar for all the wrong reasons.
Finally, attitude. I'm a pessimist by nature, and my thing at work is "yeah, it's not the greatest, but I'll survive." I've survived over 10 years in healthcare, and I'll survive many more. I just take it one shift at a time, with plans for the future to advance my career.
Oh - and I work/have worked everything but NICU.