My Dog Passed Away. Where Do I Go From Here?

Usually I’m giving advice but I really need some right now. My dog Cindy passed away a few hours ago at the age of 20 and I couldn’t have been more grateful that I got to say goodbye but it’s so hard. I feel like a mess, I feel very numb, very tired, very sad and angry, and I don’t know what to do. I’m in both physical and emotional pain right now and I don’t know how I am gonna make it through because she was such a big part of my life. I know logically, it was her time, she had been sick and she couldn’t walk very well and wasn’t eating and I am glad she is no longer suffering but I still see her everywhere! I can’t walk in a room without thinking, “is that Cindy?”. I still hear her, see her, smell her, and her stuffed animal that I have is still warm and I just want to break down every chance I get. I feel like I will never get over this and I don’t know what I should do, we went to the vet to get her cremated and we will have her back on a week but I don’t think I will be able to handle that. I can still see her lying dead in my mom’s arms and that’s traumatizing because I have never seen a dead dog before. I can’t get it out of my head, I feel like life is not worth it at all anymore cause I know that tomorrow when I wake up, she’s not gonna be there. Can anyone tell me what I should do I really don’t know and I am really desperate…