I think you made some wise choices. My dh uses the nasal cannula thing with a built in bite guard, since he clenches and grinds his teeth, too.

Sorry about your daughter's behavior. I have a 16 year old dd as well, and know all too well how challenging they can be. Is there anything you can do or remove as a "motivator?"

I think your self-assessment about disability sounds reasonable as well. From what you have written on here over the months, you sound very much like someone who would qualify for SSDI. I know it's an excrutiatingly difficult decision--until one day it isn't. You will know when that day comes. Keep your heart open to all the possibilities.

Good luck with the bipap!