I am looking into a career as a Speech-Language Pathologists. How should I go about my HS and University path?

I live in winnipeg, and going into the 10th grade. I'm in french immersion, but if it is useless for the job then I want to drop out and go to another school. If there are any extra circular activities that I should in roll in, or exactly what courses I need to partake in during High School.