Adjustment issues is a polite way of saying that the MO school won’t work out either which means back to square one.
It has happened in almost every instance I know of where someone tried that route – and the end result was complete OTD.
MO is a completely different world. Just the more rigorous secular studies program would cause more problems for a bochur coming from a regular yeshiva. So would the social order.
In any case the point is moot. No MO school is going to accept a new student for senior year (age 17) and there is no more time to even try because classes start the week after next.
Advice to the OP – contact Rabbi Yaakov Horowitz for advice. I think he has contact info on his website. Forget the kibitzers here :). Hatzlocho!
Not the Trotsky story AGAIN!
1) He had two parents.
2) He was never frum.
Inaccurate stories like that end up leading people astray.