I am so sorry to hear about you buddy. We are going through the same thing with our senior kitty, which we have had for 16 years. Tomorrow we take him for his final trip.
You must know when it's time to let him go. It won't be easy, it never will be.
You and your buddy are in our thoughts.
“In the beginning of a change, the patriot is a scarce man, and brave, and hated and scorned.
When his cause succeeds, the timid join him, for then it costs nothing to be a patriot.”
- Mark Twain