The week the boiler broke, hot water became astonishing. Four days of kettles and a friend's shower, and then on the Thursday an ordinary miracle at the turn of a tap.
Everything you have is running at that level of invisibility right now. Gratitude is basically inventory work — going round and counting things that only become interesting in their absence.
It is not a mood you have to summon. It is a list you can actually make, and the making of it is what does the work.