I'm sorry to hear about your loss. My family's two dogs passed away a few years ago and it was a very difficult time for all of us. Talking to your family about how you're feeling could help ease the pain. From personal experience, volunteering at my local animal shelter also made me feel better. Sharing stories with my family helped as well. Remembering all the silly, good memories made us realize that they will always be a treasured part of our family.
I've included some resources below that I thought would be beneficial to you.
Again, I'm sorry for your loss and I hope that I was able to help.