Pink- whilst I was establishing bf I used to pump using a really good pump (Philips avent is much better than medela as it doesn't have settings, you pump manually, press a button and it continues the same speed and strength electronically). I fed expressed milk from a bottle to let my nipples heal, and fed a few times a day, which stopped every feed becoming a battle. You can also increase supply this way, I'd aim for 6oz every time I pumped.
Try to see a bf advisor for tips on getting a good wide open mouth, things like tickle the top lip with the nipple, wait till she's really hungry, in fact often I found him screaming got a good latch as his mouth was so wide! And as my bf advisor said, moustache but no beard, you want to be able to see nipple from the top lip, but the bottom be covered.
A good thing I also found was slightly tilting the nipple towards his nose, digging the chin in low and 'rocking' his head on, don't just place them on. Keep the chin touching the breast tissue.
Sorry its hard to put across in writing, hope this helps a little. I know how awful it is when it doesn't work, but after all the pain ans torture we're feeding 100% so it can work out!
Are you rubbing milk in after each feed, and using lansinoh? The nipple should look normal when it comes out too, not elongated, pointy or with a little line across.