I start September 5th and I’m nervous too. What I’ve been doing is studying physiology and anatomy. So how everything works and functions, how the heart works, how the lungs works, how blood pressure works etc. Khan Academy is free and they have an entire section dedicated towards the body. Lastly, study medical terms since they all have different meanings (infer, infre, intre) stuff like that because those long medical terms can confuse you on the testing portions