Stress!

I have my official review tomorrow. The vice principal of the school has to observe me teach for 1 class period and then go over with me everything I do right and wrong. I hate these kind of reviews SO much. I see how they are important for most people, but I constantly analyze and overanalyze everything I do anyway, so they just fuel my inner demons. Plus I get so worried that I'm going to do poorly that I don't sleep for like 3 or 4 days leading up to the event so I am always cranky and groggy and high strung and never feel like I did as well as I could have if they didn't make such a huge deal out of them.
To top it off, I have a feeling that the VP at my school has it out for me. He never really gives me positive feedback- just "constructive" criticism (please refer to the negative self talk mentioned in the first paragraph), which makes me freak out and then binge on chocolate immediately after just to tune it all out. What I really need is a cheerleader telling me what I do right, not someone telling me what I need to work on- which is all he ever does. As if my list of things I need to do better wasn't long enough already.
The Principal at our school has a reputation for being a flesh-eating harpy, but I actually prefer when she observes me. She's always very professional and gives me a long list of pro's before she gets to the criticism part. And she never makes it sound like criticism. She just asks me "have you thought about..." and we end up having really great, long conversations about pedagogy and stuff. I love her. She makes me feel important and special. Apparently I'm the only teacher in the school that thinks that, though. When I tell other teachers this, they look at me like I'm crazy.
So anyway, wish me luck. He's observing my MOST unruly period so I'm planning activity centers (yes, you can still do activity centers in 7th/8th grade- the kids LOVE it!) so that I have an excuse for them talking and wandering all over the classroom. I figure if he's going to criticize me- I mean "give me constructive feedback" I should have him do it in a class that actually has some behavior problems. Otherwise he'll start picking on things like the fact that my posters keep falling off of the walls, etc. Maybe I'm just nuts.
Sigh. I wish I didn't have to do this. It's the last thing besides the licensing exam that I'm taking April 25th that I need to get tenure, at which point my life will become measurably easier and less complicated.