How long will it take for my 15 months old to forget her pacifier?

Hang in there. She will forget about it shortly. My oldest had his pacifier until he was 2 1/2 and then it got a hole in it. I thought he would be devastated but he put it in the trash and told me it was broken. I decided to wean my second son earlier so I just took it from him at 18 months. He looked for it for several days but he found a little stuffed puppy instead and he takes it everywhere. I think that it is the parents who need it more then the children. It is nice to have because it calms them ane helps them sleep. We use to call it the plug because when they would get fussy you can plug them. My 18 month old has really progressed and I am noticing way more language without the pacifier. Just remember at 15 months old she is less likely to remember things as well as a 3 year old so it is easier to get this over with now instead of later. Proud of you for stepping up to the challenge. It will work out just be patient.