I want to quit breastfeeding

Please don't judge me - I've really been trying everything but I just can't do it. I've been pumping every 3 hours because my baby can't latch on due to my nipples. I'm so engorged and in pain and it's making it hard to enjoy being a new parent. I can't sleep or hardly move my arms, anything that slightly moves my boobs makes me cry. How can I quit breastfeeding as soon as possible without becoming more engorged or infected?