I am so sorry for your loss. It's been 4 years since we had to make the decision for our beautiful, dear Sasha and although I miss her dearly, I love all the memories I have of her.
I'm so sorry for your loss. That's one of the toughest decisions we ever have to make, even when we know it's the more kind and loving thing to do for our fur children. Sending you hugs and pixie dust and hoping you're comforted by your memories.