how do i get better, once i've had the best?

Hey y'all (: the title of this post is from the song Thinking of You by Katy Perry. Lately I've been thinking a lot about things that were. Basically the past. I've been reflecting on friendships lost, stress-free days, and even boys from forever ago. All I keep asking myself is what lead all of these things to happen? What made these friendships fall apart, this love lost, and those days of glory, and smooth sailing slip away? Then I thought about all of these amazing things that are here right now. Instead of the few friends I've lost I thought about all the friends I've gained. Of course it's still upsetting that what used to be a great friendship, relationship, or year fell apart, but look at what I've gotten from all of those experiences coming to an end. I know this sounds wicked cliche but I promise that if you do the same, and stop living in the past you'll realize how great the present is. So, how do I get better once I've had the best? I don't know exactly, but for now I'm thinking of what I have right here, and right now. And you want to know the truth? What I have right now is pretty great. I hope this was somewhat useful for someone out there in cyberspace who might be having the same problem as I was. I promise there will be a more interesting post next time. mucho love.
-Sydney