Breastfeeding help

Anyone not make enough breastmilk no matter what you do?

My first baby lost over 10% of body weight and i had to start supplementing and then started a pumping schedule for every hour for 30 minutes. I did that for 4 months then moved to every 3 hours. She had to have formula and pumped milk the first 6 months. Then we were able to stop any formula at 9 months and purely breastfeed and she did so for over three years.

I had baby #2 in September and once again he lost too much weight but this time I can only upkeep a 3 hour pumping schedule. And still don’t make enough so he has about 12 ounces of formula a day supplemented. I went to a lactation consultant many times my first baby and they said 🤷🏼‍♀️🤷🏼‍♀️🤷🏼‍♀️ you’re doing everything right.

Anyone have this issue??? I’ve done power pumping and that didn’t do anything. Both babies were checked for ties. I just can’t seem to make enough.