You poor thing.
I would go so far as to say that you need to cut out any mutual friends. This may sound drastic to some. But I've been where you are now and I've felt that rage and hate.
I don't want people in my life who have any loyalty or friendship with my x. It's not possible. It's not workable. It would only add unnecessary stress to my life and make worse those feelings of 'he won that point'. I don't need it. YOU don't need it. The World is full of people you can be friends with. I'm guessing you're very young too. YOu have your whole life ahead of you. Don't hang on to casual acquaintances who are loyal to him or friends with him.
Second thing to do..... dehumanise him. This is very hard at first, but ultimately it's the most insulting way to behave towareds x. Don't defend yourself, don't reason with him, don't speak to him, don't text him, don't email him, don't ask after him, don't listen to gossip about him.
Literally, stick to the access shedule as much as possible and discuss nothing but that, and if you have a member of family who can handle the handovers for you then ask them. TIME TO CALL IN THIS FAVOUR.
Can your Mum, Dad, brother, sister, mutual 'friend' do the handovers?
The friend who passed on gossip about him, would she be prepared to spare you the nightmare of being in the same room as him??
He may never 'get' it. That he's an arsehole, that it's not about winning, blah blah.... You'll never get him to sit there scratching his chin thinking, hmmmm, I've been a bit a knob really. NEVER. He'll never be sorry.
All you can do is stop offering yourself up as a fly he can pull the wings off.
You have been more than accommodating with access and it's very likely that he'll want to take it back a bit. After the holiday, if thursday slips away, just accept that as it leaves your week more peaceful and less interrupted.