Try this
- Confirm the demanding period has actually ended or identify what remains.
- Choose a low-work way to mark it and keep rest available. Avoid making the celebration a new project that recreates the pressure you are trying to leave.
A worked example
“When the deadline passes, let’s have an evening with no new commitments.”
An invented example to adapt, not a real exchange or a script you have to follow.
Before you leave it here
Do not immediately replace the finished pressure with an elaborate celebration to organize.