So I had already decided I wanted a very small intimate wedding. I would like about around 15-20 people which is our immediate families and our very close few friends. I was planning to pay for the whole wedding but my mom wanted to help me. We were planning the ceremony to be in a nice park and the reception to be a dinner at one of my favorite restaurants in the town I live in. Just very simple. Everytime I see my FMIL she tries to say she will help pay but she is also trying to invite 20 people just from her side of her family. My fiance told her that he isn't even close to them and for it to just be immediate family. She keeps insisting and then trying to tell me about other locations to have it thats closer to them. She wants my number and email to text me about the wedding. How do I tactfully tell her exactly what is going to happen and I don't want to discuss it further? My fiance is even telling me we should just elope. I'm getting to frustrated and my anxiety is through the roof. Any ideas?