Look: this might be something…..it might not. Either you are prepared for this, or you aren’t. You cannot really prep in a week, and to be honest, if you aren’t prepped, then you don’t have the correct mindset yet, and you cannot get that overnight, nor can you prep overnight….
So either you are prepped, in which case you have no reason to worry, or you aren’t prepped, in which case you can’t do much to fix it quickly, so why worry….