How can i fix my overbite?

Right now, I have metal braces and molar buildups. I've had both for about two years. On my bottom row, I have an open space that needs to be filled with a fake tooth when I'm 18. Everything is repaired except for my severe overbite - its about 80% or 90%. My orthodontist wants to use the braces and rubber bands and says it could be repaired by the end of the summer. I, however, am sick and tired of braces and can't stand to have them on any longer. So, given my conditions, what are my options? Invisalign? A retainer? Surgery?