Let one good choice stand without demanding that it repair every previous one.

A single better decision gets asked to carry too much. You finally do the thing you have been meaning to do, and then measure it against everything you did not do before, so a genuine improvement arrives already looking insufficient. The comparison guarantees disappointment, because no one action can settle a backlog.

Let today’s better decision be complete in itself, with no reference to the record behind it. Note what you did rather than what it did not fix. A run of ordinary good choices is how the record changes, and it only ever happens one at a time.