Low milk production

My baby boy is 6 weeks old and I’m barely getting 4-6 ounces a day. I’m so frustrated and am supplementing with formula so he’s fed and happy. But I feel like he’s happier when he gets breast milk. What are somethings other than drinking more water and taking lactation supplements that have worked for everyone else!

Thank you from one stressed out momma.

Edited to add: This is my second baby and my first wasn’t able to breastfeed because of a medical condition I had. So this is my first go. But not a first time momma ❤️