How often do you pump?

How often and for how long are y’all pumping to build yalls supply?

Rn I try to pump 5 times a day to give myself some sleep then through the day go 4 hours between pumps and pump 20 min. In the first 3 months though I add a pump and probably do closer to 3 hours between pumps. Some days I could get in 7 pumps. It’s rare I pump longer than 20 min though. It happens if I notice I’m getting a good amount out still at 20 min. I exclusively pump and am almost 8 months into this.