Pumping question....

Missy

All my pumping/breastfeeding mommies. My daughter is two weeks old. She is a preemie born at 24 wks . I’m currently pumping and want to know a few tricks to help up my milk supply. Also would it hurt if I changed my pumping times?? My times are 2,5,8,11 am&pm. I wanted to go up an hour so for example 12,3,6,9 am&pm. Would that cause me to fall back on my supply??