Every type runs out of fuel; what differs is the leak. For the INFJ pattern — high empathy, high standards, a door that opens for everyone else's needs and sticks for their own — the leak has a signature: it is silent, it is gradual, and it is invisible to the people being helped, right up until the door slams.
The arithmetic of absorbing
People who score high on the traits behind this type do a specific kind of unpaid work: they track the emotional state of every room they are in. Colleague tense, partner flat, friend circling a problem — the INFJ noticed an hour ago and has been quietly adjusting. Each adjustment costs little. The tracking never turns off. That is the arithmetic: not one crisis, but forty invisible micro-shifts a day, every day.
This is why INFJ burnout confuses everyone, including the INFJ. There was no disaster to point to. The calendar does not look heavier than anyone else's. But the load was never on the calendar.
The early signal
The reliable early warning is not exhaustion — it is resentment with a delay. You said yes on Tuesday, meant it, and by Friday the same yes feels like something taken from you. When agreement starts converting into resentment on a timer, the tank is low. The late warning is the famous door slam: a relationship or commitment cut off suddenly and completely, which is not cruelty but the pattern's emergency brake after too many unspoken laps.
The door slam is not the problem. It is the receipt for every time the door should have been half-closed and was not.
Refueling that fits the pattern
Generic advice says rest more. For this pattern, rest is necessary but not sufficient — the fix is reducing tracking load, not just activity. Concretely: schedule genuinely alone time where nobody's state needs monitoring, not social rest. Practice the half-closed door: "I can listen for twenty minutes, then I have to stop" — said out loud, which is the hard part. And convert one recurring yes into an honest no each week, before it converts itself into resentment. The moon refills the same way it emptied: gradually, and by subtraction.