Considering breast feeding

Alantra🧜‍♀️ • Wife ❤ 1 son 💙 One on the way with a twin in heaven 💕

I have 2 friends that started breastfeeding and stopped before their baby turned a month old. One said she stopped making milk. The other said it was too stressful on her and her partner. Any advice ro avoid these 2 problems? Or why the one stopped making milk? I really wanna do this but I'm so nervous and haven't heard many people sticking with it that I know personally who tried.