American immigrant: My uncle has been naturalized. Can my mother and I (19 years old) apply for immediate family immigration?

Your uncle can apply for your mother, but because you are over age (not yet, but you will be over age when the schedule comes),

So you can't immigrate with your mother.

I won't apply for it for you until your mother arrives in America.

If you are not married by then, wait another eight years.

If you are married, you need your mother's naturalization to apply for you, and it will take 10 years from now on.

In short, it will take you 20 years to get to America at the earliest.