It's never easy losing a pet, especially one you've had for a long time. I remember when my tarantula died, I'd had her for nearly fifteen years, since I was about eight or nine years old. She'd been unwell for a while, and the protractedness of her death made it all the more emotionally draining; I was a complete wreck the whole time. I slowly came to terms with her passing, and so will you. I still miss her, and I still can't bring myself to kill a house spider . I still think about her from time to time.
I can't remember who said it but it goes something like, "As long as we remember them, then they are never really gone."
You will make it through this. You guys and little Q have my love and my sympathies
ps: loving the new avatar