sore nipples

Working on getting a better latch with my 4 day old daughter. My nipples are sore,blistered, and callused. If she is actually latched correctly would it still hurt because of their current state or am I still latching wrong? When she latches I feel a pinching the whole time but my nips feel like that without her being on them. I'm so stressed and confused. I never thought it was gonna be this emotionally trying and hard. Thanks for your help ladies.