I support my team (which apparently is the same as yours) instead of putting down the others. That kind of mentality won't lead you anywhere - in football or in life in general.
I imagine you end up saying the same thing in every world cup whenever England falls short, but one day you'll realize that just because newspapers and statistics tell you one team is better than the other that doesn't mean it's the way it's gonna play out. That's just the way it is - and thank god for that 'cause otherwise you'd know the winners of every competition beforehand.
So I suggest you deal with it in a healthy way and concentrate on supporting your own team 'cause it ain't over till it's over and it's not over for the gunners just yet