I'm all alone in this

I wrote a post about how my bf-well my ex now mom told me to stay at the house we were renting and to not worry about paying rent or the bills. I said I was worried that she will change her mind and I told her I wouldn't be able to afford the rent especially since I just started working she kept saying it was okay and to just take care of the babies n myself. well now 2 weeks later I was right and she changed her mind. She said she has to rent out the house because they aren't making any money out of it and it needs to be done by the end of this month. I am crying my eyes out because idk why I even believed her for a second since we were never really close. her son has not even bother to ask about the babies or ask if they need need anything. I have been using my credit card to buy them diapers and I need to get them wipes to morrw. I spent 235$ On just uber rides to get to work, get back home & rides to get my mom to my house to watch the babies. In just a week and a half! I tried calling him today n ofcourse he doesn't answer. I am losing everything n I loved this home. She offered for me to take her youngest son room in their house and it's super small n I have so much stuff. She said she can help me watch the kids certain days but she works ALL the time & she takes her son to school, etc. I don't trust her with my kids because she has done things that were shady & she really doesn't pay attention to them so I kno they won't be in good hands. I feel so overwhelm. I can't stay at my parents house because they fight all the time. My sister also lives with them and she fights with my mom as well and they are always cursing or arguing which makes me depressed. I feel so lost I get up at 5am to go to work and I get no rest. I have been thinking about getting a second job but that means I won't ever see my kids only at night time n Sundays. I will have to pay 900$ rent and 2 bills but its a big home with 3 room and my kids deserve it. i know i csnt afford it unless i take the second job but i dont know how i will do it. what if my mom gets stressed about taking care of the babies? I am crying as I write this down .I feel so stupid and ashamed for bringing my kids into this world and I can't provide them. I am so angry because he just left me and doesn't think about how all this will effect me n our kids. he left all responsibilities on me and I know he is out smoking weed n talking to girls instead of being a father. I'm feeling more n more depressed as I'm writing this down. I thought about taking my life away yesterday and I sobbed n screamed at my pillow. I just need someone to pray for me I just don't know what to do. I feel like I am just working to get to work. there is no public transportation that leads me that way. I'm just so lost