Is my mom being inconsiderate

I came into the car today telling my mom I got invited to a group chat and she said “I can see your bra, it’s too padded, does everybody wear it like that” acting like she didn’t know that already. And it’s my new bra she let me buy a few nights ago at the store. Also since the door was locked she tried to give me the key and my sister was there and she didn’t give it to her then she got mad at me

This had been happening for almost 2 weeks now and it’s really annoying. She also accused me of stealing because I had money and asked her to put it in my bank account, she felt bad so then she gave me $30 extra. Also her jobs been unfair to her so I feel like that’s why she’s taking it out on me. But it’s also no fair to me because theres 3 other kids in the house and she only does it to me. Also my mom told me my dad mentioned to her that my butt is getting too big