Letting go of Control

Hi with all the kids doing virtual school I find myself wasting a lot of energy on trying to control their days. Since they are done by 12 there’s plenty of time in the day and I worry they are bored. I try to do my work and can’t help butting in and trying to plan their afternoon. I have 3 kids ranging from 12-17 so they are old enough to tell me when they want to have a friend over or need something to do. How can I manage this and worry more about my own day?