breast feeding

Kaitlyn

so I had my son three years ago. was a single mom till I met my man today that was kind enough to love my son as if his own an raise him with me. we now have a little girl on the way I breast feed my son under 3 month the pain of my nipples killed an didn't have help with him as a new born he was also click I would like to try an breast feed again with my daughter longer then my son at last 6 months. any tips on to breast feeding longer then I did an how advice to get through the pain?? What helped u get through it an keep breasting?? Any tipsmm