Worried

I'm worried about the missionaries coming over tomorrow, lol. I know that sounds wierd to you, but I am. I'm worried that they will ask me questions that I don't have answers to, I'm afraid of answering the questions "wrong." Not remembering anything that I have read. Plus this sounds lame, but I'm worried about inviting them in the house. Before, we sat outside on the picnic table in the yard. Tomorrow there are supposedly thunderstorms and I'm worried about them in the house. We live in an older house, in need of major fixing uping, which we are doing as money and time allows, but it's not in the best shape. It's clean, but not in the best condition. I'm thinking about calling and seeing if they can't come over another time.....