Depression?? Help Please

I had a rough childhood, and it seems impossible to forget anything. 
I'm always upset and it's hard to do anything. I don't feel mentally capable of anything anymore. My husband dose what he can but I feel like I'm draining him with this. I don't know why I feel like this or what to do to make it better. I have a great family, and I'm great full for everything I have but I'm just not happy. I've talked to counselers and theripists, tried finding things to make me feel better but nothing works. Please help me!!