What do I do ?

So I’m having a high school crisis where every senior asks themselves what do they want to do for the rest of there life’s. Tomorrow is registration for Hancock classes and lately I’ve been telling myself I want to work with people and help them somehow so I decided I’ll be a physical therapist but that’s only for the money and the title. I also just accepted the fact I would be really happy being a history or government teacher because I always loved those classes but realistically I know you can’t do anything else with a history major if I change my mind so I have to be really sure on what I do.......... When people say the choices we make now will affect us for the rest of our life’s we’re not kidding.