I am 40 so young enough to have suffered but old enough to have enjoyed the 90s (was 10 in 1992 so got to see all 3 superbowls during my most impressionable years).
In my 20's i was a maniac about the team...wouldnt dream of missing a second of a game, got crazy, screamed, yelled, ripped off jerseys, etc....if they loss i wouldnt be approachable for days, cried after the Divisonal lost to the GIants in 2007,
In my early 30's i started softening and not taking it as seriously mostly because it wasn't sustainable and other things started being a lot more important.
When i had kids at 32, i decided i wanted them to watch with me so i started changing the way i watched games to make it more fun for them (i ruined football for my wife in my 20s).
As my kids have grown some (2,6 & 8) i have made the games about "fun football food" and having fun with daddy in the basement. For the playoffs we did "playoff parties" where we pick out fun food, wear our jerseys out, put flags on the car, daughter bakes something and we just focus on the family aspect....
I want my kids to enjoy watching with me so that its a fun expereince and something they enjoy as they get older...i have so many fond memories from my youth that i want them to have the same.