For once, the problem is that there's nobody in charge. You need to find a way to remedy that, though it certainly doesn't have to mean that you need to step up yourself. There will most likely be too much stuff going on this week for you to be able to focus on everything that's important, so pick something that seems worthwhile on Wednesday and stick with it as well as you can. The weekend will be fantastic for you, and you should be sure to let yourself go and do whatever feels right.
