suddenly everything has changed

somehow in the past two or three months i have evolved from a morning person to a night owl. all my life, i have been a bed-at-eleven/up-at-seven girl. all of a sudden, i find myself eating dinner at ten and trudging upstairs at three-thirty or later. how did this happen? and sleeping until nine and ten in the morning! how completely foreign that is to me. and it cannot continue this summer, because i'm probably going to have to be at work at least as early as seven-thirty every morning. i'm not going to lie, i'm pretty excited.