I'm MOH in my sister's wedding, that is in 37 days. She put me in charge of the bachelorette party and bridal shower, and I told the bridesmaids I had a handle on it. One of the bridesmaids in particular has basically taken over; for example, I told her that I invited everyone for the bachelorette party, and she e-mails me telling me she's basically gone behind me to talk to everyone on the list to get their RSVP (and I already had all of them but 2). She's also taking over the bridal shower, which is stressing out both me and my mom. I feel like there are way too many cooks in the kitchen and these girls don't know when to back off and let me handle things. I delegated reservation duty to this girl -- not to check behind me about RSVPs. Another girl is responsible for decorations and has been pretty good about letting me lead. I'm about to lose it; now this BM has my sister irritated and stressed out, and my sister is taking it all out on me. Help!!!!