Vote and if at all possible don't vote based on how well your preferred political parties/candidates did in the elections this year, because making one's happiness contingent upon election results is just plain unhealthy.
Are you saying that my behavior is unhealthy?
I voted Horrible Year because the US Senate did not flip.
Yes. The pendulum swings every two or four years. If you choose to invest all your happiness in the way elections turn out, then you are setting yourself up for quite the emotional roller coaster because elections will never always turn out the way you want them to. Don't let your politics define your existence, because it's truly not the only thing that matters in life.