I've also always like math from a young age, and science. I majored in math and also took a lot of physics courses in college.
I think that a career involving math will depend on how far you go with the math. If it's as far as calculus, and you like interacting with people, then teaching is a great possibility.
If you take your math education even further, into higher math, you could open up various careers in science. Math touches on almost every science, especially the "hard" sciences, including biology. But there's also data science, biostatistics, and many career pathways in business (especially with an MBA). For the business careers especially, it helps to be a people person.
I would suggest that going to college and focusing on the subjects you are interested is a first step. You could declare a major, and possibly also a minor if that's available, in your 2 favorite subjects. College will give you the opportunity to really deepen your knowledge, and you'll have more time to consider a career. During that time, you might also discover careers that you didn't know about.