Childcare

I don’t know what to do. I work full time and my SO works from home. He decided when we moved into our house to start watching our 3 year old. He wanted to make more money to be able to pay someone to watch her PT but it’s not really happening. I only have $200-300 left a month. He barely makes it to the next paycheck. We can’t afford child care but I can’t trust him to watch our 3 year old and soon to be infant (when I go back to work). The issue is he’ll binge drink a pint or half bottle during the day before I get home from work. There’s no particular rhyme or reason for which day it is. It’s just a surprise when I get home from work. With a new baby soon to be here I can’t really trust him to watch the two of them and who can we pay for $300/month but I wouldn’t be able to spend any money on groceries or things. My moms getting up there is age and she isn’t the most trustworthy person. He doesn’t want her to watch our kids for a long period of time. His mom works but she’s worse than my mom. I feel like I can’t and really don’t want to bring another child into the world. I don’t know what to do. I’m trying to figure out if I can sell a car or if we need to sell the house and rent but it’s about the same price. I’m just miserable going to work and coming home cause I just never know.