You are not alone. I am going through the same thing. It's tough. Sometimes I think we believe we are worse parents than we really are though? The thought of being a bad parent is worse to me than dealing with the bipolar.

Crying is a huge trigger for me as well. Especially if he's crying over something little. He cried once for like 20 minutes because I bumped into something he built, and it fell over. Halfway through that, I threw a small shelf, and it put a hole in the wall.