Okay, if you’re still working on completing your high school diploma, you have several options. A person can actually go back to high school, work on courses through an online high school, or study for and take the GED exam. Either one works, you just have to decide which one works best for your situation.
If language is your thing, perhaps a career in linguistics might be up your alley. The field of linguistics is wide. The study of language is fascinating (at least for some people) and can lead to careers in teaching, research and translating, as well as many others.