Not burnout in the adult, working sense no I don't think so. That would be quite worrying and likely not actually caused by school / college.

School tired, absolutely. Generally speaking, in the adult world motivation is a nice to have, the need to have is discipline. Discipline does not care in the slightest if you want to do something or if you're motivated to do it. Discipline is doing it no matter what because that is what you've decided that you will do.

The source of discipline is your parents, objectively they failed. Not out of malice mind you, just from not knowing that this was something they had to do. Since you did your schoolwork, a typical source of contention where a parent needs to instill discipline in their child, they didn't identify that they needed to find some other way to teach you. Be it housework, training/exercise or hell even taking care of one self if you're the "workaholic" type that needs to use discipline to force themselves to have fun and relax.

Now of course that train has sailed. So you need to teach yourself. Which is not easy but you'll succeed. I find it helpful to think of discipline as something you get more of the more you use it. So start small, decide on something small that you should/need to do but struggle with. Maybe it's brushing your teeth EVERY night or getting out of bed when the alarm rings or running laundry every weekend. Something, and then doing that until it's either completely automated or you've got enough control over it that you know you'll always be able to quickly force yourself to do it. Then move on to bigger fish. Perhaps it's spending one hour (a specific hour helps, like 6-7 pm) doing schoolwork. Doesn't even matter if you don't even have schoolwork to do, just read course material again or look into an upcoming course. It needs to be mandatory, something you don't allow yourself to ever cheat on.

Further never ever reward yourself with NOT doing a task like studying/training etc. Instead reward yourself with other things. A piece of candy at the most basic, an hour of watching TV/playing games or whatever other activities you want to do, that you don't need discipline to do.

I hope this is helpful. Take care of yourself, you got this!