Do I HAVE to pump 8 times a day?

I'm exhausted. I have a 5 year old and he's finally gone back to daycare after having the last 4 weeks off essentially. I need sleep. I went 8 hours between pumping last night but I did breastfeed twice in that time.

I'm to the point that I can fill up my daughter in a BF session but it doesn't empty me. I'm only pumping about 5x a day but breastfeed 2-4 times a day. Is that enough though? I'm pumping about 30 ounces fairly consistently on top of whatever I'm feeding her which is about 2 ounces per breast per session. I feel like my supply is good but everyone is saying 8x a day but that just feels like a lot.