How do you cope? 😔

This week we found out my boy, my main man, my copilot, my compadre and my best friend Marty has cancer. He'll be 12 soon and you'd never know it. He's as spry as a puppy, walks and runs like a champ! In a routine examination the vet found a lump which later proved to be as anal sac adenocarcinoma (AGASACA), a highly aggressive, malignant cancer of the anal glands in dogs. He'll have to have surgery next month and probably remove some lymph nodes with the anal gland and then be put on several rounds of chemo. The best case scenario hopefully gives him 1 to 2 years. WTF??!! He seems so healthy! I'm in my 60s and have had my share of dogs and they all take a piece of your heart when they go but this guy is going to take the whole thing and I don't know what I'll do without him. It just doesn't seem real.