I hope that clarified things a bit. I want to make it very clear that I was not subjecting my children to "emotional torture" for the last 10 years. He was not always this unstable and the kids were not always upset with his presence. There was a time that when he was a decent father. He's never been that great a husband, but now he's neither.
But you said he's been unstable for 'the last couple of years'. That's going to make it pretty hard to argue that you need an emergency hearing. If you put up with it for 'a couple of years', there's no emergency.
It's also going to be hard to argue that he's unfit to be around the kids if you've put up with it for a couple of years.
You're going to need a solid, convincing, FACTUAL story for the judge. An even marginally competent attorney could make mincemeat of what you're saying.
I would suggest you drop all the attacks on him - there's no need for it and it only makes you look bad. You want a divorce? File for divorce. You want custody? Then prove that the kids are better with you than with him. You want to get out of paying alimony and sharing property with him? Sorry, not likely.