That sounds like it kinda sucks!
My mum had a hand in one of my most recent rentals too- also not because she paid, but because she had a strong opinion! "I love this place! I would live here! Dont leave it! It's so handy for me!" But eventually after I told her about all the problems with living there she agreed it wasn't the best... idk how much time you've got to change her mind or if she ever will though.
Will you feel bitter about your place if you have to choose the one she chooses for you?

Two of my friends actually BOUGHT houses recently and wheeww that sounds like such an effort but also they all seem so relieved to no longer have to pay rent to a random landlord, and to be able to hang hooks, paint walls, or change things about the kitchens!
I went to one friends house the other day and he had like, a smart lock on the door? It had finger print stuff and codes and sung a little song and logged who went in it and when. And he made all his lights voice activated! like WOAH SO FANCY! I dont think his parents had any say in it... but idk if his parents have met his partners either so I guess some people just live relatively family pressure free!