I just lost my dog and need some advice.?

I've grown really attached to her, I loved her to death. She died because she escaped and apparently got hit by a car by someone. I felt so sad I cried carrying her in my arms dead, carrying her to my backyard, digging her a hole. Setting her in the hole. Trying to force to close her eyes because I didn't want to see them open while I put the dirt over her. I just need help. I have 2 other dogs but I just feel like something is missing still. Because they all have their own personalities. She was my angel. Everything reminds me of her, I'd wake up she'll be at my feet or rub her face in mine. I give my dogs treats I grab 3 but now I only grab 2. I call for all the dogs I call her name usually first because she usually was the best listener whenever you called upon her name she would come to you no matter what. I just can't get over that she's gone. I look at her grave and just wish time would just rewind so I can help prevent this tragedy. Some might think it's just a dog. But I feel like I lost a piece of me. I'm just venting but I miss my baby so much. I can't stop thinking about her. When I look at my other dogs I just think of her, wishing she was still here enjoying life with us still. Any advice on losing a dog or a loved one?