Dry up milk

Decided I'm no longer going to breastfeed. It's hard when the kids are 17 months apart.. but I give huge props to those that can do it! Going on day 2 of not breastfeeding. Woke up and I'm completely soaked & my breasts are rock hard and hurt so much! I've been putting cabbage leaves on them. What else should I do? It hurts so bad. & how long does it take for milk to dry up? Also can I still get a clogged milk duct or mastitis? What are ways to prevent it if I can still get them 😭