What is the process of becoming a lawyer like?

I’ve been debating whether or not I want to be a lawyer. I’m currently only in high school, but I’ve been worried about what I want to do in the future. I’ve been considering becoming a lawyer but I don’t really understand how the whole process works.
In order to be a lawyer, what classes do I have to major in? I’d have to take 4 years of regular college and then law school?
Can somebody please explain to me the entire process of becoming a lawyer, and what types of lawyers are there?