If you want to go for bio-medical it means that you want to pursue science applications that have impact on the welfare of beings. I say "impact" because the effects could be constructive or destructive or in the middle. Do you recognize here Gauss's Bell curve - my favorite mathematical concept that was appropriated by statistics, which is applied math. In order to disseminate the scientific discoveries and to apply them in day to day life we have to express them, using different media. Math is a medium of expression. The deeper you understand it and the more you can do it - math that is correlated to your needs of expression - the easier it will be. I remember, while being a physics teacher and being with the same students for four years, how I was waiting to reteach in junior and senior years concepts that were previously taught without calculus knowledge. The muscles that math builds in your brain are symbolically similar to the real ones that the athletes build by satisfying the boring activities imposed on them by the coaches. Do you remember seeing the swimmer Michael Phelps fighting tires bigger than him just because... HE had to? With math muscles built, up you can tell, in a blink of an eye, if 3599 is a prime number or not because you see the algebraic shortcut that screams at you. You find the answer reading Michael Lewis's book "Flash Boys". I assume you watched the movies "The Big Short"and "Money Ball" that is an applied example to your question - the books are written by the same author.
Manuela recommends the following next steps:
- Do some math the old fashion way.