How do you keep it interesting?

I am constantly creating new characters. There are some I have never actually played but enjoy having in my world. It's also fun to challenge yourself to create a house or a Sim who looks just like a real-life counterpart. For example, I created Spock, Uhura, and Kirk, then created rooms for Spock and Uhura that look like their rooms on the show. Then I made their house look sort of like the Enterprise but still with easy routing and fun playability. Then I decided that Kirk went insane and wandered off alone into the jungles of Selvadora, with McCoy and Chapel following to keep him safe. Things like this are very engrossing for me and take many, many hours. Then the next day I get bored of this and played Jem from the 80s cartoon show as a mermaid. Now I want her to run a daycare because Jem cared for foster children on the show. Then I got obsessed with creating children who look nothing like any Sim children I've ever seen before.

Allowing myself to be weird and accepting my short attention span keeps it exciting for me everyday. ?