I wanted to write a happy song.

Whenever something good happens in my life, I worry about losing it. I realize that I should live in the moment.
It doesn't matter if good things go away. I should be happy that I had them in the first place.
In a more pessimistic view, if I can't be happy then, then I can't ever be happy.

But in the end, I'm the ultimate overthinker. It shouldn't be so deep.