Emotional Miscarriages, What can I do?

I miscarried about four weeks ago. I am still having some spotting and a lot of cramping. My emotions are the hardest part i think. I dont know how to deal with them. I get angry easy, sad easier, and Im just not happy at all. I was very happy before this happened. I cry when ever I see the pics of the ultrasound in my head. Such a beautiful baby. Just no heart beat. I was 8 weeks along. Im pretty sure the baby died while i was out milking our cow. I had severe cramping. The next day at the er when i was bleeding the dr said it died within the last 24 hours. I really do blame myself even though logically I know it wasnt my fault. I know the baby was not strong enough or developing properly but I still feel I could have done more to stop it. I dont know how to deal with this loss it hurts a lot still. My heart aches for the child that could have been. What can I do?