Baby Fights Sleep ☹️

Okim • 27 expecting first child 😊
My baby will be 1 month tomorrow. Idk why but she fights her sleep 😣. It's to the point that she's screaming to the top of her lungs & rejects the pacifier. In my mind I'm thinking "hey if your sleepy, just go to sleep". Lol. It's not that simple 😞. Any suggestions 🤦🏽‍♀️ ?