This is impossible.
I've always clung to every phase of my life like a child clings to his mother, and now - now I'm just letting go. I've left middle school, which has to be one of the best phases of my life, and I'm not feeling sentimental. I've just crossed an important milestone, and the road behind me is shrouded in mist.
True, I behaved as though I didn't like middle school. I've said I hated it, I've scorned it, I've speculated ahead of it, but underneath all the pretense, I cared for it. And yet - I don't miss it. There is so little time I can't be as senti as I would have liked to. I'm too busy enjoying my new-found (and short-lived) freedom. After that, I'll be too caught up in the worries of high school to realise what I've missed.
Is that what life has become - a road so busy you can't look over your shoulder to see how far you've come? I hope not.