Suddenly unemployed and single mom

I've worked hard in the tech industry since college to provide a stable and comfortable life for my family. I grew up poor so my adult life has been all about providing for my family.  8 months ago I spent all of my savings and retirement to leave a toxic marriage of 9 years.  Shortly after, I left my employer of almost 10 years to pursue change and new learning opportunities at a contriversial company.
Last Thursday I was fired for leaving work to take my 5 and 6 year old daughters to school in the afternoons. Ive done STEM mentoring and given talks at women's events, working for women's equality in the tech industry. This situation will make a great speaking topic someday but today I'm completely screwed. I am increasingly failing to be the strong woman I've always tried to show the girls I am and they can be.
I'm terrible at asking for help, but I'm terrified and have no family or friends with money to turn to. I'm working overtime to get employment again but I'm not making ends-meet. Any help to support my children and is greatly appreciated.