Breastfeeding tips!

I am currently 31 weeks pregnant and plan on breastfeeding my baby girl once she’s here. I want to exclusively breastfeed her for the first year of her life or even longer if possible. I breastfed my first daughter for about 2 months before my milk supply dried out. What are some tips you breastfeeding mommas can give on keeping a good supply the whole year. How often should I pump? Do you pump right after nursing? Do you take supplements to help your supply? TIA ❤️