Milk supply first child vs second child

Marissa • Baby Girl #2 due 5/14/21

I’m currently 29 weeks pregnant with my second child. I never had that great of a milk supply with my first and I tried so hard with power pumping, supplements, homemade lactation cookies and muffins, Body Armor drinks, all kinds of stuff. I was just wondering if you had the same issues with every child or if your milk supply seemed different for each child.