MIL driving me crazy I need advice

First things first, she is very controlling and it’s always been her way or no way. When I was pregnant, she agreed to help with my babyshower but when I expressed my preference on decorations and cake, she ghosted me and ignored me until after i had my baby. She missed the last 20 weeks of my pregnancy and his birth all over not getting her way. It’s her son (my boyfriends) & I first child!!! We have since tried to work things out and she does daycare for us (our only option, she has a daycare and takes great care of him despite our issues) .. while in daycare she has done a lot of little things I have let pass because I don’t want there to be issues with her keeping him. I have also asked her not to kiss him on the lips (she did in front of me). Today though, she went on to plan a Christmas picture at the mall with her sister and the sisters kids (the mothers of these kids were also included on going) and she planned it for a Friday knowing I have work. When I told her we couldn’t make it, she said she will still take my baby. I feel it’s done on purpose and I’m being left out while everyone else is considered. I feel like she is crossing boundaries by telling vs asking me about taking him. I expressed wanting to be there and can she find a different day and she said she couldn’t because that day works for everyone else and verbatim said “well I don’t know what to tell you he has to go I already have his outfit” I’m sick of her trying to control everything. It’s my child and I say NO! Am I wrong?