My poor nipples!

I gave birth early Saturday morning and instantly I started to breastfeed, the first two days were too bad But my poor nipples are soooooooo sore and bleeding. I feel awful that I dread to feed because of the pain in causes.

I don't wanna supplement with formula but I can barely handle feeding my baby.

I don't know how to go about supplementing this early especially since I never planned on supplementing.

Also how long does this much pain stay around for??