Any nursing mommas have to...

Nesa
Take some sort of suppliment to increase supply?  I have been having an overproduction and have donated a lot of my milk stash. However the last 10 days my supply drastically dropped, and have had to dip into my stash!!  I need to get it back to where it was!!! I am talking about making 30ish oz a day or so to barely making 20 oz ( NOT enough 😭). My question is, have you taken any suppliments and what worked for you? Was it a temporary thing or will I have to take this for a while? I have started adding more pumping sessions and eating oat meal. I didn't come this far to quit!! Please help?!?!