First manifestation determination meeting!

This is my 4th year as a high school RSP case manager, and I’ll be having my first manifestation meeting next week!

The parent of the student is very scary on a regular day, and he’s already trying to get an advocate to plead his case that the behavior is a manifestation.

I’m having extreme stress about this meeting, to the point of feeling ill!

Any advice or calming words from those of you with experience?