I can relate. I barely remember the glory days. My fandom has been encompassed by the 15 year drought. It's frustrating, to the point where you wonder why bother.
Well, we all need something to believe in. Religion, politics, etc.
I choose to believe in the Bills. It's not as simple as game by game, but long term. Sure, you may question your allegiance to the team after a frustrating loss, but we all well know the following week we are right back at it, living and breathing Buffalo.
Hang in there, we will succeed! (eventually)