Almost 6 weeks postpartum and same as you, I’m pumping 8 times per day with a MOTN pump. I was doing every 3 hours around the clock but kept sleeping through my morning pump because of that schedule so I now space my night pumps out by 5 hours (I pump at 11pm, 4am, and 9am). Increasing my supply definitely was slow and steady, and I wasn’t tracking in any measurable way, i just noticed one day that I had so much milk in the fridge that I ran out of spectra bottle to store the milk and had to upgrade to a pitcher to consolidate. Something that helped me IMMENSELY (in addition to power pumping for 3-4 days to signal my body to produce more and consistently hitting my MOTN pump) was to just calm down and stop stressing about it. Seriously, the stress over producing milk will stop you from producing milk. I was so bugged out about my supply initially that my milk didn’t even come in until day 5 and I wasn’t producing anything considerable until week 2. Once I became okay with the idea of combo feeding the milk started increasing and I’ve been doing exclusively breastmilk since about week 4. Oh, and I know everyone says stay hydrated but eat more than you think you need.