Depression kicks in in 3, 2, 1

Im a 23 year old single and only parent to a 3 month old boy. Ive been living on my own for 5 years and 3 of those with a significant other (not the dad). The past 2 years of being on my own have been hell. landlords taking advantage of me, crappy roommates, landlords trying to rape me, coworkers stalking me, etc. So when I got pregnant I thought I would have all my &$#@ together and live happily. sike! Maternity Leave kicked my ass and left me broke and now I am facing eviction. Ive been diagnosed depressed since 12. Have tried to take my life 3 times since then. I say my son saved my life, because he did. He made me grow up (still have more to do but Im better than I was.) He made me fight my depression and make me want to live. With this eviction I feel like a failure. Like I let my kid down. We do have a place to go, We have to move in with my mom and my sister and nephew that live with her. Its a crowded 2 bedroom apt. But it beats living in the street. however I have to get rid of my dog. she loves my son and she has helped with my depression. I'll go from living happily by myself and go to a crowded home. We will have to make the living room our room. I feel like this is selfish of me and I do see the bright side of the situation. I just cant bring myself to live without my fur baby. shes been there for me and I cant be there for her. Everything I worked hard for will have to go to storage. I worked my ass off for what we have and where we are but I failed miserably. I didnt work hard enough before maternity leave even with me working until 38 weeks. I feel the depression coming. and I wont be happy again until Im back living on my own and have my dog. America should really have paid maternity leave. It kicked my ass financially, especially not having a spouse to help me