No friends or family and no support

I'd love to just have someone be there and actually care and listen. My parents think I'm worthless my son age 9 lives with my mother they took him while I was getting diagnosed she never tried to help us both we both could have gone to stay with her and I'd of kept parental rights but she refused to have me. I am 28 and my daughter who is 18months lives with me. She I absolutely amazing and I love her so much but I'm always sad and because I have no support nothing gets resolved and I feel horrible because I cry all the time and I don't want it to effect her she is everything to me and without her I have nothing left. I dont know what to do I just want to stop hurting and it is so hard to ask for support professionally when you have young children because you feel like they'll think your inadequate when you know your doing everything you can I thrive for perfection since losing my son i just want to stop hurting and feel normal :(