Postpartum depression

Who do you go to for postpartum depression?! I had my 6 week appointment with my OBGYN over the phone due to this whole virus thing. I have a history of depression and I am 100% not ok right now. I answered the questionnaire truthfully and all my answer were severe. Well my OB did nothing. I even told her my anxiety is so bad right now I don’t sleep more than an hour and She told me to put my baby on a schedule and try to sleep when he does and that I’m fine lots of moms are sleep deprived. I don’t know if I’m crazy or did I just get disregarded? I cry every single day, I don’t sleep at all, I don’t feel like I deserve my son and that he would be better off with a different mom, I feel like I’m not good enough for my son, I have anxiety attacks daily about the thought of my son getting sick, hell my list goes on. I’m barely holding on for my sons sake. Do you go to your OBGYN for postpartum depression or your primary? If so should I just bring it up to her again? I’m so confused. I’m also a first time mom so idk what to do