Breastfeeding experienced mamas

I want to successfully breastfeed with this baby, my other two only lasted a month because of my worrisome that they weren't getting enough, anyways I was wondering what kind of snacks or dry foods and drinks would be best to have in my room while breastfeeding, my room is upstairs so going up and down the stairs for food and water during the first week would be difficult, my daughters will be with their dad and it will just be me and baby home (father is not involved) and I heard you get super hungry and thirsty during breastfeeding and there's some foods and drinks that can increase milk flow, I know drinking plenty of water helps. And Thanks in advanced , I just want to be prepared already and I can't wait til my breastfeeding class to ask questions, it doesn't start for another two weeks lol I'm due in 8 weeks. 🤗