I've been vaguely noticing a pattern with my moods. If I wake up in an exceptionally great mood in the morning, often I'm in a terrible mood within hours. Or vice-versa for waking up in a terrible mood. And how it will go for the rest of the day often hard to predict as well other than that the extremes will often continue.

In short, I think that rather than having a mood for the day, I may have a level of mood strength on a given day.

My moods are definitely most extreme these days after nights of not getting enough sleep. Guess I may have to get used to them in the not so distant future ;) On the bright side, the extremes tend to be good at least as much as than bad.

Teaching piano lessons is very good for me when it comes to moods. No matter what mood I've been in I've always been able to turn my focus to the students and what they're working on and forget about bad moods. I'm always in a reasonably good mood after having taught a lesson. Although how long this lasts varies quite a bit. If I'm in an especially good mood when teaching a lesson the kids tend to reflect it and also get into good moods.