I have many many friends who are older than me, and I lose one or two every year, but they would be horrified if I gave up our hobby because they passed away. Of course losing your best sailing mate is a hard thing to bear and no one can tell you how to grieve, just remember what you and your friend shared and remember that every time you sail, a piece of him is with you both in the water and in the models he built.
It shows the quality of this hobby and the members on Mayhem that people want to be with you in your time of loss.