Had a job where I was running basically most of the backoffice for that company.
Answered about 1 to1, 5k emails a day. Stuff like that.
I asked my boss to hire more people as I worked nearly 10 hour a day without real breaks. (which in Germany is against like at least 10 laws)
After nothing happend for about half a year aside from me getting a small pay raise.
I told the boss one more time I need to get support, I can't do this anymore.
And he again said that he's searching for someone.
The week after I went to a headhunter agency who rolled out the red carpet for me.
I had signed a new contract within 2 weeks.
My old position is now filled by 3 people and an assistant.
I work normal hour now make more money, have more days off and can chill at work sometimes.
Sometimes taking the leap is the best thing you can do.