careers for those subject

2 answers

check with your college counselor
or, visit a college and talk to the faculty there

Rather than figure out what you can do with what you know, discover what you love, and find out what it will take to succeed in that field.
Talk to someone successful in that field.
oobleck is right on. You want to prepare yourself in a subject that you enjoy doing. Work in a field that is fun to go to work every day. You'll never get tired of getting paid for having fun.