Similar boat....been together 20 years, married for 12, two young children. I asked for a divorce nearly two years ago.
We are still living in the same house. I am in the spare bedroom. I spent 5 months on a blow up air bed, finally got a single mattress because I realized the divorce was going to be anything but quick.
Waster 18 months mediating. All it did was waste money and drag out proceedings which only work in his favor.
Atmosphere is....well all valuables have been moved out so he can't help himself to my jewelry box. I have a webcam in my room. We argue over the washing, he's bleached some of my clothes, shrunk others. I have given him a rota for putting the kids to bed so it's not always left to me and he learns, hopefully, how to actually parent.
I'm painted as the bad person, the home breaker who is "gonna make the kids autistic dragging them through this sh!t" while he does nothing, literally nothing.
I wanted this to be as amicable as possible...I hate him. I resent the air he breathes, the house he won't move out of which my salary put us in, the kingsize bed he lays in which I bought in our nice master bedroom. The way he windmills in playing "worlds best dad" but doesn't do any actual parenting like getting the kids to brush their teeth, feeding them properly, making sure homework is done, school runs etc.
He's a waste of space and the longer this is drawn out for the more I hate him, and the crappy legal system which doesn't support those who want a divorce and are basically held hostage in their homes.