Deciding a Major

I couldn't decide a major or what I wanted to do, but now that I have limited it down to Kinesiology and Forensics. I can't make a final decision in what I really want to pursue. I am currently taking the forensics class at school and am really enjoying it. I do however enjoy helping people, which is why I might want to go into physical therapy, but I can also decide to take a path to become a forensic scientist. I also don't know what college I should choose depending on my major. So my two questions would be how you made your final decision in choosing a major and also how you picked a college for that specific major.