I'm overwhelmed and depressed on a vacation
Why are you sad on your vacation?
I enjoy vacations but at the same time my mind is always occupied with work related issues.
You're on vacation so you can get away from work. The whole point of a vacation is to have fun and forget about your worries
It's not that easy. I'm a slave to my company and always receive calls and messages. I always have to respond and comply with my manager's wishes.
Then it's time to look for another job, that lets you be yourself when your not on their time.