What happened??

I was reading some old stuff I wrote Back In The Day (I was looking for data on what I did for Valentines Day 2006 — still unknown), and I want to know this: what happened to me?! I used to be all casual and relaxed, writing stuff that was deep and/or funny (really, very funny) and/or informative (really, thanks Wikipedia). But now I’m all agonized over every. single. thing. I try to write. I’m afraid and tense and stiff and completely unrelaxed. What happened?!?