Set the week: wake times, showers, homework days, activities. Then stop thinking about it.
Showers Monday and Thursday. No homework Friday. No alarm Saturday. Per child, per day.
iCloud, Google, Outlook, the school district, the dance studio's schedule. Anything that publishes a calendar link. Nobody should retype a season of practices into a parenting app.
One child is at dance. The other is coming along. Same event, two different routines.
An early game starts the day earlier on its own. You are not resetting alarms the night before.