Reliving the past? To think about it, I don't think it's impossible. Be realistic though, as it cannot be exactly the same. Recreate it. Go to the place resembling what's in your memory, and live there. Do things you used to love doing. But be open minded as change is not necessarily a bad thing. Adjust a little bit, meet new people, accept the fact that nothing lasts forever.

There's nothing wrong with loving your inner child, your ideals, beautiful things... Just remember that you're moving forward, and the moment, the future is more important.