Welcome to cheesemaking, snccoulter!
I got in about seven years ago...it's awesome!
If you keep everything clean, follow the recipe, and use decent ingredients, you'll be fine, everytime. You might not be 100% on style, especially at first...but I've never had a cheese turn out inedible.
Take the plunge, get the process started...then, Relax, don't worry, and pair some homemade cheese with a homebrew! (RDWAPSHCWIAH? It might catch on!)