Hi, what is known of MLC usually goes back to issues in childhood. Your daughter, with very high level math, and comprehension issues in early childhood, was probably very very frustrated as a small child. She is acting out now, not bottling it up. Hard for you, but maybe, just maybe better for her longer term mental health. My middle son was brilliant at math but fortunately very articulate. But he has friends who are much less so.
I hesitate to put everything on MLC but I do not think the way our husbands behaved when their kids were in adolescence and early adult life helps them at all. Growing up is hard enough without a parent acting like a goat!
As for the money you spend on kids - my goodness yes.
What subjects is your daughter specializing in? Is she playing to her strengths?