Claim a child

I have lived with a friend, who is a single mom working full-time. I moved in to help out with child care, so she could still work and provide for her child. It's now been 2 + years that I've cooked, cleaned and provided care for a minimum  of 50 hours per week. I've never been paid besides a gift here and there. I use my food stamps for my food. But I'm broke, can I claim the child if I have no income for the year but have provided child care for free? Hope you can answer my question.  Thank You🤔