Depression/weight loss

Okay so I never post, but I really need some advice or just a steer in the right direction. Ever since I had my daughter I’ve been depressed (she’s almost a year old now). I’ve never suffered with depression to this extent before. I have literally lost my will to do anything. I don’t go anywhere or do anything and it’s starting to take its toll. I’ve gained a lot of weight because I’m an emotional eater. Basically I’m looking for advice on how to get some motivation back. I have a doctors appointment coming up to help with the depression, but I feel like it could possibly be a dead end if it doesn’t help. I was wondering if anyone drank the Atkin shakes and if they helped? Or any type of supplement pills that might have helped?