Bioengineering advice

Hi there. I am entering college in Fall of 2014 and my proposed major is Bioengineering. I am insanely nervous and afraid, since I have never had an experience with engineering and my current background knowledge in Biology is pretty low. In high school my Biology teachers were not even credited to teach the subject and did not require us to do any work. I can honestly just sit here and blame my high school teachers for the poor education I received, but I cannot entirely blame them since I was never motivated enough to do anything about it or be heard.

During my senior year I began getting more serious about things and decided that I wanted to do Bioengineering, because I enjoy the creative aspect about it and I am not too shabby with Mathematics. I am aware that the workload will be insane, but I feel like if I learn how to manage my time better I will be more comfortable with getting my work done. The thing that scares me most is the Bio aspect of the major, since I have been told that it requires a lot of memorization, which I am not an expert at.

I was wondering if you have any advice for someone like me, especially if my goal is to possibly create prosthetics, become an Orthopaedic Surgeon, or Oncologist. I know I currently lack confidence, which is what you probably need in order to get into this field, but I learn quickly and have the determination to accomplish what I want.
posted by Kim, Bay Area on July 8, 2014