For me, it's mostly focused on better versions of me with input taken from real life as well as parts of who I actually am.
Eg: 2 to 3 years ago, My daydreams were focused on a version of me who's a successful E-sports player and lives independent, very physically fit and good at dating. Now it's more focused on dream scenarios involving a certain lady I've had feelings for. And real life incidents have added to the daydreams. Eg: a friend's marriage in real life led me to imagine that I had attended it and had a good time when I could not.