1) The private school may have scholarship funds.
2) The middleschool may not as bad as anticipated
3) Homeschooling may be more socially enriching than you think.

Look for outside scholarship sources.
Keep trying new school situations until you find one that works sort of. Your goal isn't to find the best but to find the 'least bad' option.

Best wishes
Grinity


Coaching available, at SchoolSuccessSolutions.com