I have lost my brother and now I'm single. I'm a single mother by choice because the father of my…

I have lost my brother and now I'm single. I'm a single mother by choice because the father of my child would not keep his ex out of our lives and wouldn't stop lying and I'm pregnant as hell. Between these two things I just feel so very alone. I have never been so hurt in my life. Idk what to do. I'm very depressed now and it's just you know a challenge everyday.