HELP- title too short lol

Taylor • 20. Had my first baby girl on October 17. Macie Lane 🎀💕
When my baby goes to eat she'll latch on then keep wiggling and pull her head away and unlatch then latch back on and keeps doing that over and over. It is SO frustrating because she gets milk everywhere and it makes my nipple sore after a while. Why does she do this and how can I make her stop? 😭