am I really worth more....

I feel like every day I'm just in my own body and not getting anything done. I thought I was getting better.. I thought this time around it was going to be different but slowly I see and feel myself drowning. I'm a mother of 2 just had my baby girl this past March. I cant feel like this again.. my husband gets annoyed and upset with me when I'm feeling like this. I try to talk myself out of it but can't. why am I letting it win..