I'm so so sorry you're going through this. It truly is awful.
I'm certainly no expert but after 3 miscarriages in a row, all within a year, I found things that helped. First of all, talk about it. It hurts, and it's hard, but having my partner with me to talk about it was the greatest support, as was my family. My OH took time off work so we could just be alone together, could your partner stay with you through this? We also went to a miscarriage support group in London, and it was odd but gave me a chance to not feel so alone, would it be something you think you'd like to do?
Another thing that really helped was not pushing away from creating something for our potential children that we'd hoped to bring home. I decided to give myself a year, and buy small trinkets for those babies we lost. Such as a tiny Christmas tree in December, a tiny pumpkin at Halloween, a teddy I found and just knew I'd have bought it for them. This may not be for everyone, but it can help to look for something positive that you can 'give' them. It's been over a year since, and after that year I stopped because for me that felt like long enough. However, I didn't get any clothes or anything because that felt too strange for me.
And also, give yourself time. However much time depends entirely on how you feel. For some women it's a month, for me it was a year after my last miscarriage before I wanted to try again. Take however long you need, and remember it's not a race. I got desperate to try again very quickly at some points, but instead gave my body and mind time to heal, started conception vitamins and ate healthily as much as possible before trying again. This approach isn't best for everyone though and just do what feels right to you. However, maybe give it at least one period before trying again as this gives your womb some time to sort itself out a bit and prepare properly for another implantation?
I know it feels impossible to deal with right now, but you will be able to look back on this one day and remember how much this baby was loved, and that that is what is the most important thing.
Other sources that helped for me, and I hope can help you:
www.miscarriageassociation.org.uk/
www.tommys.org/
And also, I avoided babies like they were the plague for a while too, and hated anyone I saw who was pregnant for a while. Seems silly, but emotions are strange. I really hope at least one bit of this helped, and again, I'm so sorry. I wish you all the luck in the world in the future.