Decrease Oversupply

Hi there- I've scoured this sub and have found super useful advice already.

I'm looking to decrease my oversupply to the 30-30oz my baby eats in a day. I've been to countless lactation appointments and they all haven't been very helpful. Any questions I ask are met with "you do what you feel is best" which is not helpful. Ive found everyone on this sub to have much more knowledge!

I'm currently pumping 6-7 times per day with no real change in ounces. The times I pump vary from day to day but I have my MOTN pump at 1:45am with my first pump being around 7:45-8am and last pump around 8 or 9pm. I'm looking to decrease the amount of pumps and make my milk less watery from the oversupply. I pump for 20 minutes max.

Any recommendations? I can't commit to any concrete pumping times due to lifestyle, unfortunately, but would love to hear about what has worked for others- thank you!