My baby doesn’t sleep in night

Amani

Hi,

I am working mom my baby girl is 15 weeks. The problem is her system and sleep pattern hasn’t changed yet. She is up all the night she sleeps every night not before 6 in the morning. We are exclusively breastfeeding. I am so tired of being up all the night and go to work my husband is helping me but it’s not enough l don’t get enough sleep since She was born. I give her bath around 10 pm every night and feed her but she it doesn’t work.

Please, advise me how can I change her clock and make her sleep through the night.

Please any trick to help me 😭😭