Breastfeeding and anti depressants

I've finally admitted to myself that I need to try an antidepressant. I believe that I have major depressive disorder and it's starting to effect my marriage. I have a one year old daughter who gives me joy and I love my husband but I feel so empty. I avoid most social interactions and I haven't talked to any of my old friends in 5 years. I've completely isolated myself. I want my only child to be around other kids, have play dates and birthday parties but I'm

Terrified of socializing. Depression feels so selfish and I feel completely alone. What antidepressants have you tried and/or currently taking? How much did it help and did you go to

Therapy as well? I'm breastfeeding right now and beginning to wean her but that may take a few months.