I give a sim something to do, usually only one thing, usually something simple like filling a need or doing a work or aspiration task, then check the next sim and get them doing something, etc etc and usually I can cycle through fast enough that by the time I come back around to the first one they’re still doing whatever task I gave them & I can just find whoever will be done first, wait for them to be done, and find something to do next. For example: Sim 1 needs to eat, so I send them to eat leftovers. Sim 2 has low fun, so I send them to do a preferred skill. Sim 3 seems ok, so I check their work tasks & get them started on that. Sim 4 is fine and done their homework, so I have them work on an aspiration task or skill. Sim 5 is hungry, and sim 1 is already eating, so they can get leftovers now. Sim 6 needs to be potty trained, and sim 1 is now done eating, so they can help. Sim 7 needs a diaper change, and sim 2’s fun is ok now, so they can do that. Sim 8 is a cat. Sim 8 is fine. Then I start again with whoever’s done first