Things to do to help milk supply while pregnant?

Is there anything that can be done while you’re pregnant to help your chances of being successful with breast feeding? I wasn’t able to nurse my first. She was in the nicu for a few days and I was pumping but we missed out on a lot of skin to skin time and I just got discouraged bc my milk never seemed to come in.

Just wondering if there are any supplements, foods, teas, etc that I could start eating or taking now to increase my chances!! I’m 18 weeks now.