Everyone with your exact job title in your industry vanishes, how long until awful things happen?
I'm a support engineer for dental software. So difficult issues won't get immediate resolutions, and instead development will actually have to fix things because offices will be crying at them for a fix instead of at me.
But the world won't end.
Alot of people with mental health issues would be wandering the streets. Some would simply die at home due to not being able to look after and feed themselves. A fair few would be going around sexually assaulting young girls/boys (not understanding they're adults & it's wrong) and alot would be so pissed off and confused they be trying to kick the shit out of anyone they'd see. The world wouldn't end but it'd be a pain in the arse to navigate.
Oof yeah we would over night go back to the days of sanatoriums where having mental health issue is more or less just prison with a different name.