Looking through all your past tournaments and the results you received? It’s kind of bitter-sweet for me. It’s nice to relive the good times and remember the dynamics and thrill of each tournament, but it’s sad knowing they all happened in the past and that you have to move on.
Sometimes looking back relives some of my worst knightmares! 
I do find it useful when comparing tournaments from year to year, but always looking towards the next event.
Yes, it does, very much. Mostly they are good memories. I still have all of my old scoresheets, so it’s not hard to remember the circumstances in which I wrote them.