* Hollywood *?

How should you start , Or what steps should I do because I want to be a famous actor? What is an agent? How can I get an agent?
I am in HIgh School theater and Im already taking Acting classes in college. Im a senior and not to sound coincited but I always get a good review form the audience, I am a really good actorand the bbest of it is that I have passion for it. I have gotten really good roles on the plays I've being. So yeah I do have some experience besides acting too, I know how to do some lighting (for theater). And obviously I have experince acting.