There is a running total that never fully switches off — the sum kept going in your head while you walk round a shop, the quick recalculation at the till, the small ongoing subtraction that costs something all day and appears on no statement.
What eases first, when things do ease, is not the spending. It is that. The arithmetic goes quiet, and the relief turns out to be much less dramatic than people expect. No elation. Just the absence of a noise you had long ago stopped hearing.
If it hasn't gone quiet yet, that is a fact about the numbers and not about you. Plenty of careful, capable people are doing those sums tonight.