I'm a single mum but I only have one dc so slightly different. However my days are usually....
Up before ds. Load in washing machine, then make breakfast, wake ds, get ready for school, school run.
Home, work 9 - 1, put supper in slow cooker, hang washing out, quick sandwich, maybe a quick run, work 2-5.30
Collect ds from afterschool club, make snack, help with homework while cooking pasta/rice. Have supper, stack dishwasher, do life admin, get ds to bed, tidy up kitchen, prep school kit for next day, bath, bed.
Anything not above gets done at the weekend. Food shopping, housework, socialising etc. It's easier in the summer, longer evenings mean friends & neighbours drop in for a coffee or a glass of wine in the garden.
Routine & planning are essential.