Over bearing MIL HELP!!

Megan • Nurse, wife, and mommy
I'm a new mom & love my baby girl more than anything I've ever loved. His mom is constantly on us every day I feel like not letting us live our own life. She is my daughter & I always feel like she's someone I need to be answering to. I hate it. She steals my pics & acts as if my daughter is her own. Idk if I'm just being a baby. Help? Anyone else feel this way?