The moment. Next week, someone will ask for the hour you set aside for yourself.
The check: whose mask is on? Look at next week and find one block that is there for you, to think or to rest. If there isn't one, you're helping everyone else first.
1. Put your own mask on first. Pick a time that ends your working day and keep it, starting with one night a week. If this week's evenings are already taken, pick next Tuesday and put it in the calendar now. On that night, charge your phone outside the bedroom so the inbox waits until morning. Put the session with your coach and your planning block back in the week, where they were, and mark both as fixed so they stop being the first things to move when an escalation comes in.
2. Ask for help out loud. Choose one thing you've been carrying alone that someone on your team is ready to own, like the deck you were going to rebuild on Sunday, and hand it to them. Or tell a peer you trust that you're running low. A two-line message on Thursday afternoon will do.
Say this: "I'm running low this week, so I'm keeping this evening for myself. I'll pick up anything urgent first thing tomorrow."
What it costs. A few emails wait until the morning, and you trust a colleague to make a Friday decision without checking with you first. In most weeks, that's a fair trade for a clearer head when the vendor dispute comes back.
If you're on the team: offer to take one specific thing off your leader's week, like running the Thursday supplier call, and say it in a sentence they can answer with a yes. "I can take the supplier call on Thursday" is enough.
Tell me what happened. Try it this week and reply with the one hour you kept, and what you did with it. I read every reply.