Have a second phone number that you can leave behind.
With the rise of smartphones over the last 10-15 years, everyone is on call all of the time. dreading being fired any time they are texted or called by their employer.
Your boss should not even be able to contact you for any reason once your day is done.
Unplug, rest, and don't give more of your 24 hours a day than you are actually being paid for.
There's virtually nothing than cannot wait until the next morning.
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