Need help with my milk!

Ok. So I have been pumping since I delivered . I was making 4-6 oz with every pumping sessions every 2-3 hours . It was going great! Then my appetite started to regulate like before and I tend to not eat a lot normally when not pregnant . So now my milk is drying up FAST. I am only making 1 - 1 and half oz now and it’s heartbreaking . I don’t want to give up. If I eat more will it help bring it back up? I need any type of advice or products that’s also worked . I still pump the same routinely but it isn’t making nearly as much. Sometimes it’s even less than the 1 oz . Please any advice is welcome . Thank you