Trying to get financially independent

I am 28 wks pg with a 2-1/2 yr old and 7 yr old. My 7 yr old goes to school but I have no babysitter for my 2-1/2 yr old and my soon-to-be. I have no real job history to impress anyone with because my husband was always the bread winner... and he preferred it that way as part of his little emotional dominance scheme I have finally come to realize he has been working on these last 10 years. I want out but I have no real wowing work history or any other income coming in. Basically I need advice on how to get a job making enough to afford three kids on my own until I can get them in school... or a point in the right direction of a quick education program...