I Only pump, but today I bought a nipple shield so I can try to latch my baby. Now I don’t know when I pump, or if I should pump one boob after she latches onto the other one.

My baby is one month old, so she didn’t know how to latch at all. Today I bought a nipple shield, and she immediately latched and started feeding. But now I don’t know when I should pump, or if I pump one boob after she feeds off of the other one? I don’t know anything about how to latch and pump. I was only pumping for the whole month, but my breast need a break because the nipples are so sore from only pumping.