Will my baby be affected by my postpartum depression?

I have been struggling with severe depression after my baby was born 14 months ago. In that time I was admitted to a psychiatric hospital twice, the second time was because I swallowed a whole bottle of my medicine that contained lithium and spent two days in ICU.I am tired of being depressed and struggling to cope with the guilt of not being a good mother for so long. I have recently read that babies whose mothers suffered from depression affects infant development and this makes me feel even worse.I want to be a good mother from now on, but how should I forgive myself for the past year? My daughter spent most of the time with my mother-in-law and I am scared that because she spent so little time with me that it affected her in some way.Here is a link to the article that I read: http://ift.tt/2vdKWpI via /r/Parenting http://ift.tt/2f0BhwD