I'm really sorry to hear that you're having a rough time. If it's any consolation at all, you're not the only one having major issues with anatomy. I made a D- on our first test last Friday and the class average was significantly above that. It seemed like pretty much everyone did significantly better than I did. Needless to say, I felt stupid, inadequate, and was extremely frustrated. I also struggled a lot with anatomy last semester, too, and just barely passed the class (though to be fair, I barely passed period)---I probably wouldn't have if it weren't for an offered remedial exam. It's especially annoying because I am doing much better this semester academically in the other classes if my test grades so far are any indication... but for whatever reason I cannot seem to crack anatomy and I've tried a variety of study techniques and, like you, I spend the better part of my week studying and reviewing. It just isn't sticking how it should.
Thankfully, the professor has reached out to me and we're meeting on Monday to discuss possible strategies for improving my learning and performance in the course. Maybe you could arrange something similar with yours?
Definitely take the weekend off, recuperate, and hopefully you can bounce back from this setback and excel on the next test. You can do this, Caiter! You're smart, you deserve to be there, and we all have the utmost faith in you. 🙂