So I am trying to figure out how to politely tell my step mom, who has suddenly become overly excited about my wedding, that she cannot take over MY wedding and undermine any ideas my actually mother may have because my mom (who raised me and is my best friend) is playing a major role in my wedding. The issue is I believe my step mom feels that because my dad has agreed to help financially she is entitled to do as she pleases. Her reasoning behind it is that "I am still one of her daughters and she wants to treat me as she would one of her own."
Just so you know how extreme I'm speaking, she has put together her ideas of centerpieces, how to decorate the pews, color schemes, what material she prefers, and has a list of do's and don'ts for anyone who assists her with the planning.
While I appreciate her enthusiasm and welcome in her assistance I need to know how to say it without ruffling any feathers!!!
HELP