I'm not entirely sure how, and doing so would reveal a lot about me personally, but here's the gist of it:
My life is essentially going to get worse and worse as time goes on, almost a negative sloping graph. The highlite of my life was when I was a child, and every year it will get worse and worse.
I could be dead wrong, but that seems to be the most likely outcome.
I think I may have had the same thought vaguely...
It won't be that way if you do everything you feel like when you feel like it, though. Carpe Diem! Within reason, of course. Just make sure you make time for having fun once in a while, and if you can still think like a child, you'll still have that freedom. If I keep going on it'll sound really cheesy, but I'll keep going if you want me to...
This kind of thinking is what's kept me out of that hole. Otherwise I'd be depressed as hell, too.