From a friend, in reply to my query:
I think I would feel somewhat bemused and mostly cheered up. Having recently been in the position of uncovering and having to move my old journals I think I can say that I have recently found the same thing to be true. I thought I would be horrified at that girl and her emotional excesses, but I found she is still right there, and basically I am happy to have found out that I am still that girl. Or maybe I am finally learning to stop caring what other people think so much.