It's so sad to read your everyday struggles. Though I can relate to this but I believe you can still strike a balance and spend time with your children.
You know little ones easily tilt if care and attention is not being given.
That you don't regret having to put your children's future at risk because of work.
My question is, can't you work in a place different from where you are working now? If it takes so many hours to get back home after work?