9th Grade Untraditional

I will be homeschooling my son through his 9th grade year.
I'll admit, I feel a little clueless as to how to go about this in a way that will prepare him for the future of his dreams...
I realize that ideally, most would say he needs a structured school, and there are many online programs that he can do.
I've tried these methods.. He loses interest and shuts down..And once he shuts down, there is nothing that can bring him back..
So this year, instead of a traditional curriculum, he will be choosing what he wants to learn.. And I will do my best to provide the resources he needs.

Any suggestions are greatly welcomed and appreciated.

Thank You
Miss H.