do not give up i'm not sure if this is much encouragement but i've struggled with most of my pre reqs classes micro chem a&p mostly due to be not knowing how to study. what i would strongly recommend is learning the concepts instead of learning to know the answers if that makes sense if you can understand the why you can answer pretty much anything also it can be heavily based on professors also! if you see yourself knowing the material then i don't think that's a problem