PPD... Help!

Hey ladies, yesterday I was diagnosed with postpartum depression. It may be because of an undiagnosed thyroid issue or just the stress of becoming a new mother. I was wondering what helped out those of you who have had it. I was prescribed zoloft but I'm sure it takes more than just medication. My SO entirely blames himself and I told him it isn't really his fault. He has taken it upon himself to now do all of the laundry and dishes so I don't have to worry about it. He wants me to take care of myself but I feel guilty with him taking over household things because he does work 2 jobs so I can stay home with the baby. I just need help, any suggestions are welcome. Thank you