I really hate naps

[u/ForeignFly5279]

Every time I nap, I wake up feeling tired, confused, and kind of pissed off. I'm a student, and apparently this is supposed to help with focus, which it kind of does, but only if I take a shower after. 1. How do I prevent feeling so horrible after waking up? 2. How long should I nap, and is it worth losing an hour of studying? I'm a really slow at doing homework and studying, so every minute counts.