You have enough room at the table to squeeze a few more people in, absolutely. That's your attitude on Monday and Tuesday. Not everyone has the gumption you do, and your willingness to take others under your wing will be repaid tenfold. As the week continues, it presents more and more challenges.
Wednesday is confusing, Thursday is a total mess and Friday is apocalyptically dramatic. Thankfully, you're not invested in the drama, so your response is only a very general tiredness. It isn't until the weekend that you get to have some fun. Lots of it, actually.