feeling like a piece of shit

Ladies I am starting to get stressed out since I quit my job to stay home with baby.. I enjoy staying with baby but we are on a tight budget and I hate living like that 😰 I did what I thought was best for baby and now I'm finding myself stressed, upset and overwhelmed. Are there any over the counter pills to help this? I remember my friend from work told me she used to take them here and there when she was feeling like this (she was single mom and working 2 jobs) but I can't remember what she said they were. She said it helped calm her nerves and not get so angry/upset..