Getting ready to leave to go tell my boss

I'll try to get on here a little later and write about how it went. I'm really nervous about telling my principle. Everyone says that I have nothing to worry about, that it's good news and he's sure to be happy about it. Still, I feel like he's going to take this meeting as an opportunity to get on me about all the things that I haven't done yet (like figure out my certification and take that one Praxis test that I've been too sick to take this summer). I keep trying to come up with excuses in my head not to go, but I know I just need to get it over with. Here goes...