You can start to stretch out time between your pumping sessions, by eliminating one at a time or you can start to cut minutes off some or all of your sessions. Either one will start to signal your body to make less milk. I never really had a problem stopping pumping during the day since my body was already making less milk, but some people suggest cabbage leaves in your bra if you have problems with engorgement.
Congrats for making it this long! You've done awesome
