Eighth grade, wanting to skip ninth grade.

I am in eighth grade right now.
And I'm supposed to be going into nith grade next year.
But I'm smart enough to be going into tenth grade, and my dad says it's a smart descision to go ahead a grade.
But I need to know what do over the summer.
I want to take ninth grade classes, so I can go into tenth grade next year, but I go to a private school and they don't offer summer school.
And the public schools in my area are not so great.
So can I take them online?
I need help.
And soon!

If your school feels you are able to skip a grade - they will tell you. Its their choice, not yours.

talk to a school councellor...

and let me add, that my school is tiny.
we don't have any school counselours or anything.
and I've been elligible to skip a grade for a while now.