– you mentioned that your lechatchilah for your son was that he should be a rebbe – is he intellectually inclined? statistically many kids at risk are not intellectually inclined and therefore not cut out for the very intellectually driven jewish frum school curriculum. this does not mean that there is anything wrong with the kids, it just means as our local headmaster says – schools are not designed for kids. especially if you would have liked him to be a rebbe which means he is the top learner then this is pressure to be intellectual
– have you asked your parents for advice?