Need advise ladies !

So I live with my mom right now until my boyfriend and I can save up enough money for our own place. My mom isn't working right now and she is literally obsessed with my sister and I. I love her to death but sometimes it's way to much. I'm 20 years old, a mom, and I'm with the father of my son. I will stay at his house like 3 days a week since I'm on maternity leave right now. Every Time I leave she WILL NOT leave me alone. I'm trying to have alone time with my boyfriend and his family with our son. She will blow up my phone asking when I'm coming home, ask for pictures of him, say how much she misses him.. ITS BEEN TWO DAYS! Once I go back to work, I'll only see him on the weekends since he lives 20 mins away. My mother will take literally 100s of pictures/videos on her phone of my son and post them on social media... Even one of him naked in the bath!!! I post maybe 3 pictures a week of him and it's my kid! Whenever I come home she will take him from me and post online that's he's home, and how much she missed him blah blah blah. Even when I gave birth she PROMISED me several times that she would let me post first... But she did anyways. She even posted pics of me with my nipple showing snd part of my vagina when he was coming out 😡😡 She is literally stressing me out to the point that I'm in tears and not eating when I'm at home. When I'm with Chais (the father) I'm so calmed down and not stressed out... How can I tell her to lay low and not post every single second. I get she's happy but this is my family... I'm not happy about all the postings and neither is daddy. UGH HELP.