My wife and I used to tag-team. Only one person got to lose it at a time. As soon as one person got that distant, exasperated look, Parent 2 jumped in and Parent 1 could go cool down, watch a show, have a drink, or take a bath. If solo, we’d use distraction and humor. If too much, you stick them in a playpen with toys and let them self-sooth.

If it’s any consolation, they won’t remember diddly-squat of anything that happened before ages 5-6.

If you right-click and View Source, it all fits on one screen.

So many ways…

Also, if you logout, you can’t log back in. Sounds like it’s getting blocked at the server end.