Preparing body to breastfeed

Hi. I’m newly pregnant and I wanted to gets some tips on anything I can do now to start to prepare my body for the most amount of milk as possible. Is there anything I can do? I have two children already and with the first I was very young and wanted nothing to do with breastfeeding. The second had jaundice rather bad so I was forced to supplement right away and it threw me off. I was able to make it to six months with her having 1 bottle of breast milk a day. But I was only pumping 1 or 2 ounces a bottle at a time. I’d really like to be prepared as much as possible this time around. I feel very determined. Thanks ladies.