I recently graduated with a HBSc where I did a double-major biology and psychology with a minor in sociology, although my field of interest is a little bit different. I did a bit of social-cognitive psychology but the majority of it was focused toward biological, neurophysiology and neuroscience, so those courses were hardcore sciences as opposed to more arts-oriented courses. I was the opposite of you, the hardcore sciences just "clicked". I will say that the biology aspect of the degree certainly opens more doors than just the psychology degree, so if you are also interested in education, then I'd say to pursue it as well. I don't know much about educational psychology or personality psychology but I'd venture to guess you could combine the two quite easily. It is also in the realm of occupational therapy and the psychology component of rehab sciences if those fields interest you.