What a lovely long life she has had. She must have been so happy and contented with you and her family.
You did her REAL proud. Well done.
I understand the pain. I've lost a fair few of my pets over the years, and taking them to the vets for the last time has always been absolute AGONY for me. The last time was for my cat who purred the WHOLE time in the vets office (he usually hates the vets). And i take it as a sign that he knew, and he was at peace about it.
Sending you love your way to help you feel better. You'll miss her a lot, and you'll love her forever.
kind hugs,
Limiya