I’m soooo annoyed and frustrated !!

I’m trying to get my daughter weaned off paci so I started putting her to bed without it she cries loud for a while but “eventually” falls asleep ...well I also live with my mom and she swears I’m killing her. She does not listen to me when I say it’s time for her to learn to go to sleep without the paci. She bought her new ones and gives them to her when it’s time for her naps. Me and my mom have gotten into it several times about what I think is best for MY daughter and I feel like she thinks because she’s helping me out with a place to stay that she has a say so in how I raise MY daughter I can’t get through to her and I’m starting to loose it. I feel like I can’t raise my daughter how I want to because she’s always trying to coddle and spoil her. Which is okay sometimes but she’s not going to be a baby forever and I refuse to let her turn 2 years old and still walking around with a paci in her mouth. What would I do??