I agree, the most difficult part was picking out the fabric.
And I think the most important thing is to make a "cheat sheet"; (it's not really a cheat sheet, just don't know what else to call it) and cut a little piece of fabric and mark fabric with corresponding number). That way it makes it easier to see what number goes where. I'm sure your teacher will tell you all about it. I'm on my second one and it's going together very well. You will enjoy it. And have fun with it.