@proverbs3v5 Prep ahead for more than one day.
Clothes, when folding laundry, group into full outfits.
Lunches, prep as many as you can into daily plastic bags, snacks, apples, drinks etc. anything that will keep for days, prep all together.
Consider doing less baths, or maybe switching some to showers.
How much do the 16 and 8 year old do as chores? Are they interested in doing the above prepping for you for additional allowance/pocket money?
What is breakfast? Can they eat it in the car if they don’t finish it in good time at home (toast!) can it be something quick like cereal and milk?
When things are running late take a big long breath and take note of what has taken too long and work on that. Give yourself some grace - you’re doing the best you can. Tell your work that you are actively working on getting there on time.