Hi!
My name is Emilio and I am a biomedical engineering and medicine student (yes, both). I've been looking into Mathematica for a couple of days now and I have been wondering what I can do with it. I know this information is around on the web: mathematica can do so many things that this question might sound dumb. However, I would like specific examples of mathematica applications around these two fields and how I might go about looking into them and learning the language at the same time. I'm only in my second year of college and have still this semester and next before I begin learning real engineering and medicine stuff. I am a bit impatient about this and would like to start doing something now. Anything. Only a few ideas I already have about using mathematica have to do with biomechanics, farmacokinetic (?) modeling and tissue engineering, but I don't know how to go about exploring with these or any other topics, so I would like kinda in-depth descriptions of mathematica applications within fields such as these, in order to see if I should buy it or not. Also what things I need to be already familiar with to explore such topics (vector calculus, differential equations, biochemistry etc).  
Thank you in advance, I hope this question does not violate community rules or something.