Having a hardtime dealing with a death

I'm having a hard time dealing with a death of one of my pets right now. He was 16, and he passed in my arms, I saw his last breath and will never forget his eyes. I've never been thru anything like this and I'm just feeling like no one really understands (except my friends at YT)

My husband - he's trying and he cried too, but I think he deals with things different. My mom? Well, she thinks I should be over it. And try to move on I don't think thats going to happen.

I held him for so long after he was gone - not wanting to let go. I just don't know how to deal with it and needed to vent. Thanks for listening