Other people will have much better input as I just walked away one day after almost 100% meeting attendance, but in reading this I did remember I walked into the hall one morning after a service meeting and handed the CO a letter - couldn't even remember what it said but it was a criticism. It wasn't about how I was going to leave though, I didn't even know that until the moment it happend.
I want to throw a different angle on this though, which is that you don't want to actually fade, but your participation in the organization does. Since depression IS an issue, lets say the goal is to let that messed up, neurotic false "you" fade - but let the real you grow. As a brother I knew from a convention used to say all the time, keep your spirits up. And of course this forum can help with that, but do whatever you have to.