Everything you said sounds exactly like me 9 years ago. It sounds like the depression you are going through stems from evil that was perpetrated on you when you were a child. Listen to me. Children do not deserve evil. If there is some part of you that enjoyed the abuse, that is an unfortunate but natural reaction of our human bodies in order to survive. You are no longer a child, as an adult you can get beyond surviving and start living, but it will take prayer and counseling. I went into group counseling, and I also found a workbook for survivors of certain childhood abuses. Your personality may be completely different from mine, but I enjoy workbooks (yes, I'm weird), so working through the book helped me to open up to myself the things that needed to come to the surface so that I could deal with them. That's where the group therapy came in. My husband was there for me as well, but he just wasn't strong enough to be there as much as I thought I needed. Also, on top of all this, I had a serious case of post-partum depression/psychosis that exacerbated what I was going through. The unfornunate reality of having a child when you have not yet dealt with the horrors of your childhood is that you will tend to relive them on some level whether you realize it or not when you try to connect with him. But you need that deep bonding with your baby, for both yourself and for Sammi.
Because I was too consumed with my own mess, I didn't even try to bond with Morgan until she was over two. I love her, but I never felt quite as "bonded" with her as I have with my son whom I gave birth after I healed from my past. Bond with Sammi anyway. Don't wait, and seek any help you can to heal from your past. Don't wait.