PostP Depression

When I was pregnant my SO decided he didn’t love me anymore and he left me, I had to move into my mom’s house and sell all of my furniture. While pregnant I had gallbladder stones and was in the hospital for the remainder of my pregnancy no visits just me in an empty room for months.. while I was going to give birth my SO decided he wanted to be there for his daughter and I let him because I wanted someone there with me. After I was discharged to go home my baby turned blue she spent a couple days in the NICU , her dad was with me the whole time, because I still had stones a week after I was back in the hospital and the doctor decided to do surgery, the day after I was admitted in the hospital my mom discovered my baby’s umbilical cord was infected so she took her to the ER because I never answered my phone, knowing I was in the hospital and so was she was the hardest thing in the word. The day I had surgery I asked to go home because I needed to see my baby who was also in a different hospital. I stayed with her in her room just hours of having surgery myself, the incision hurt I was in pain and I was still in pain from giving birth a week before. While in the hospital my baby had a hard time breathing but all the doctors and nurses ignored it. My SO and i had been inseparable since and we decided to give it a second chance. As we go home I notice her breathing was off and she was having trouble so I took her to a different doctor, he said I didn’t know what I was doing and he could tell I was a first time mom. She kept doing the same at home so now I don’t sleep because I watch her all the time I have no help and I cry all the time worrying about what can happen, my mom tells me I cry for attention and I’m immature for that reason but I know I’m depressed. She told me if I get help they’ll take my baby away from me for not being okay. This is just way to hard and I can’t handle it anymore.. and what I didn’t know was that my SO is already living with someone else and now he doesn’t even see my daughter because his gf doesn’t let him