Tips on dealing with antepartum/postpartum depression?

I know, I should speak to my doctor and get counseling (I’ve previously dealt with depression years back), but I am waiting for my appointment next week. I am currently 36 weeks and have been so unbelievably sad this last week. I am crying over everything (I’ve probably got an influx of hormones); I feel similar to how I did when I was diagnosed with depression a while ago. I want to do nothing at all, but the nesting urges in me have kept me going thankfully. I can’t stop crying, sleeping, and I do have intrusive thoughts (towards myself, not the baby at all - I want to hold her so badly already it makes me cry). Do any of you ladies have tips on how to deal with the emotions, lack of interest, etc?