i find it important to have a smaller, unrelated second club that you can go to.
mine is Valenciennes FC in France. Yes...the club that pretty much ceased to exist back in the 90s due to the whole marseille match fixing deal.
It's just relaxing to watch a team that has nothing more than a slim, outside chance of winning anything, and who's transfers still tend to be below 7 figures.
I can sit there and tear my hair out for 90 minutes over an arsenal match, but for some reason with VAFC, i can easily sit there and watch them lose 3-0 and say "eh, good try. We'll get them next time. Let's just avoid the drop."