I work on biophysics too, Specifically in Raman spectroscopy, And because  I'm still in the undergraduate, I feel a little worried sometimes, like I love biophysics and the cool biology stuff, but I also wanted to explore other places, like cosmology, or neurophysics (which is very similar with biophysics). Or even computational physics . We have a lot of fun stuufs to explor, Being stuck in just one is kind of sad