having your parents support is a great help. i have no earth shattering advice for you other than enjoy your baby and find things to read. Look on the internet for free self help MP3's to listen to on the internet. It will help you sort things out.
Talk to a priest or clergy about forgiving yourself. A thorough confession is helpful. I received the best comment from a priest a long time ago. i was upset my marriage had failed b/c no one else in my family was divorced, he said don't get caught up in the sin of pride, it just stopped me dead in my tracks, no way i thought, i was feeling sorry for myself and i realized it was just adding gas to the flames that were soon to burn out. Take care.