Affordable childcare options in Boston after 7 years as a barista

I have 7 kids and I need to interview and work without a sitter. There are 7 people counting on me, so I am trying to be careful. A neighbour offered help but not every day. Is there an emergency option?

Thanks for writing this out. I went through something close to it 8 months ago, and it settled down once I kept a simple log of every call and form.