seem to be a very busy parent. take my share and I hope it make a kind help for your situation.
Firstly, that is your health. Lack of sleep, then if too frequent can lead to depression and fatigue. With your work shifts, ask for a scientific schedule.
Secondly, for your children, I think that your kids can take care themselves together, the 9 can help and look after the younger. Your task is how to prepare them a good foods, good timetable and note. Write down a note or memo to remind them what to do during your absence. When you have work off, any time, spend time to talk to them and share with them.
Just a few words that I can share and hope that it's useful.
Reply me if it make a kind help.