How to dry up milk supply?

Hi! I was wondering if you could post a question for me. I’m a brand new mama of a preemie. She’s six days old. I had high hopes of breastfeeding when I found out I was pregnant; I’ve been pumping for a few days now, but I decided it’s just not for me. What is the best way to stop my milk supply?

6 day old preemie? Have you talked to your dr? Anyone. Preemie especially really needs the nutrients breast milk has.
Talk to a professional, not FB