Plugged milk duct, mastitis or abscess

Erika • 26. Wifey. SAHM two beautiful baby girls 🌸 11.05.17 06.13.19 and a perfect little boy 💙 09.14.21

First time breastfeeding one of my babies and I woke up today with a painful part of my breast that feels like a large mass. I’ve been feeding my baby on that breast a lot more all day today and it’s still very hard and painful. Does anyone have experience with this and can help differentiate between the 3 issues? Thanks!