My favorite enjoyable morning activity is sleep.

1. Shower
2. Cleaning
3. Walk around the neighborhood/park

Mine for a while has been playing Fall Guys. It's a game that's somewhat challenging to do well at, but there's no stakes, and it's a brightly colored game that's good ad giving you a quick "dopamine" hit without sucking you in. It also lets me look at lemmy a bit between rounds, but makes sure I don't get stuck here, forcing me to put it down when the next round starts.

If you live in a place that is often overcast, or has inclement weather that prevents a 30 minute morning walk... perhaps even regardless of that:

HappyLamp in the morning.

Its a fancier kind of bulb that comes much closer to the full spectrum of the light from the sun.

When I was going through a Seasonal Affective Depression ... arc? era? episode? ... that was prescribed to me to help both the depression, and the circadian rhythm disregulation... both of those often reinforce each other.

Basically you just leave it on in whatever room you're in, in the morning, for 30 to 45 minutes.

But yeah, setting and sticking to a schedule involving moderately intensive activities in the morning is also very good!

I try to pick a small activity that I cannot do in bed and needs to be done regularly. For me, that’s practicing my instrument. Doesn’t need to be an intense practice, just picking it up and doing some scales and warm ups tends to kick me into a different mode. Also, being part of an orchestra provides the external pressure which means I have to do it.

One thing that I used to do is something mentally stimulating, like a crossword or some Tetris or planning next week's meals. Or you could read a chapter of a book.