Am i healthy i recently had a baby and im unable to sleep even when he does i do sleep but not a lot?

I recently had a baby about a month ago and i been nurtering him anytime he crys and all. no one helps me! I dont sleep much any more the most I slept since labor was 3 or 4 hours! IEven when he sleeps I am unable to sleep?! I have this feeling of needing to do things.=[ and also i get mad at his father for a lot of reasons. im a full time mom,meaning 24-7 and he works only 8hours. I ask him constantly to help me but he doesnt understand.=[ my body feels very weak and sometime i get carried away on nurturing my baby that i forget to eat!! i need to know your opinion NiCELY if I may have some sort of depression?