MIL

how do i tell my mil to stop being so involved with my baby?? i dont need the help she's giving, when I was having confinement at my parents home i took care of everything myself. my mil likes to take my daughter from me and play with her when I'm carrying my daughter. she also likes to bathe her n close her door n purposely make baby sleep in HER room. really pisses me off. sometimes i rly want to cut my mil off totally, but once in awhile I'll need her to help me take care baby when i go jb pump petrol. how? any advices.