I was suppose to graduate high school in 2004, instead I was 2 credits away from it. Is there any way I can just get the 2 credits to gradute?

Talk to the institution that you were attending.

They'll have restrictions on what needs to be taken, where.

Core classes, for ex, usually need to be taken from the univ in the last 2 years.

But if it was just a gen req there might be room.

You must talk to the institution you were attending to know your options.

Are we talking high school or college? Most universities have a "window" of time that they will look to award a degree. You need to call them with your question, 3 years is a big window.