Furry psychologist supavillain Dr. Maddkap is gonna tell you something now, and this is from the heart.

You don't know how many more good days you're gonna get. Ain't no way of knowing. So if you just had a good one, stop for a minute and say "That was a damn good day, and I'm grateful for every single one of those that I have. I might never have another good one. But dammit, THIS DAY was a damn good one."

And then you thank whatever is you believe in for giving you that day, and you go on.