I dont know what to do about my bf?

this is exactly whats happening to my friend and yes u need to let that family know ur the mom u gotta do ur own mistakes and show ur baby what u want her to learn. dont let the grandma take to much care of ur daughter because shes guna tell ur baby to call her mama and also they might put her against u thats whats happening to my friend her baby sometimes doesnt wana go with her because of the grandma and how can a baby be independent at 8 months sorry but they are crazy dont let none of that happen be strong and do what u gota do... and tell him to stop drinking family is first