I need help has some one truth this?

okay i am 24 weeks pregnant and its my first baby my mom first granddaughter and she is excited i am to but she is that kind of person that wants to have everything her way she wanted to pick the crib set the decoration of the room and i am lucky she didn't pick the name i don't want to be rude but am having problems with my baby daddy and now she wants to pay $400 too makes tacos for parties for my baby shower and there already enough food ii don't know what to do am going crazy with this lady she is my mom i know but this is something me and my boyfriend should decide and want to decide help pliz can anyone give advice