Dear Sherry,
I'm so very sorry with all you have been going through.

We have a forum here concerning Service & Support Animals Forum
I wish I could give you more information about the assist dog, but I live in Australia, a long way away, and I've no idea what to suggest right now. However, I'm sure there are people who check that forum who would have more information for you.

As well as posting here, I would also suggest that you may find some very supportive people in the Survivors of Suicide Forum