The best thing I did was went to a breastfeeding class. It was offered at my local WIC office for free. Look into them you will learn a ton!
It does hurt when the bb ***** on ur nipples but it'll go away in a few weeks of so but u can get the madela nipple cream n that helps a lot. They usually say to switch when bb feeds on one breast for about 15-20min. U can pump when the bb is asleep but get the electric breast pump cuz the manual ones *****.
With my 1st child I tried so hard to breast feed and didn't produce enough milk. I plan on trying again. I attended a meeting a LA Leche League this month. A lot of information. I thought it was beneficial. Plan on going returning even after the baby is born. Look it up and find a meeting near you. It can help you. If you're on Facebook they have a page with lots of information daily. Good luck :)