Read Leviticus 8, the first chapter in Genesis (the creation). If you can read Boyd K. Packer's Holy Temple. The other thing I'm going to tell you is to just relax. And feel free to ask questions (before, during or after) a lot of the time people won't ask, because they are afraid to ask something they shouldn't. But 90% of what goes on can be talked about, and so people entire needlessly worried and clueless.
We'll talk. (just one week and you're coming to visit me!!! :)
These little notes sure brighten my day :)