I think about the good things in life

Good things are structurally forgettable. The train arrived on time, so nothing happened, so there is nothing to tell anyone and no reason for the day to file it. A delay of forty minutes, on the other hand, becomes an anecdote you are still using in March.

That is a filing problem rather than a life problem. Most of what went right today left no paperwork, which is not at all the same as it not having gone right.