My mom is soo fake

So I’m in college & so is my brother. I’m taking nursing & he’s taking criminal justice. Two totally diff majors & nursing is NOT easy. I’m 18 , freshman in college & im changing my major next semester because I’ve decided this isn’t working for me. No matter how much I try I either fail or study hard, think I pass & still end up disappointed. It was her idea to do nursing , my counselor changed it but my original major was business. Anyways my brother class ended early and he passed his English class and showed her then I heard her talking to him & saying she doesn’t think I’m gonna pass because I was complaining and I don’t try hard (all because I said this major isn’t working out for me I’m not interested at all I’m stressed & unhappy). And she was like how i don’t challenge myself my brother is smart and I’m not etc. I told her I can hear her tlking abt me & if I don’t like something I’m not gonna force myself to do it period. This is why I didn’t want to tell her abt switching my major cause I know she’ll talk shit about me. I got upset cause I do try but its just NOT working. Shit happens 🤷‍♀️I told her she’s a weird mom for always doubting me. She’s so fake cause if I do something good I’m better than my brother but if he does something good he’s better than me. That’s her words of encouragement... making u look better than the other sibling. My brother is 22 & he’s also a freshman. I don’t have a good relationship with my mom but we still live with her it’s so annoying she’s always doubting someone or talking shit and when I told her I heard her (I was in my bedroom I texted her) she said Lol no I wasn’t then when I sent her what she was saying she sent me this emoji “🤷‍♀️”. This lady doesn’t know how to UPLIFT anyone. She’s so not supportive. She wants me to do everything she says exactly how she says it. She told me I don’t try to be like other girls I have a nice body but I don’t go to the gym & I don’t go to the doctor to fix my face cause I get acne. What the fuck is wrong w this lady. She’s so weird to me I never tlk to her except say hello & when we do tlk she’s ALWAYS gossiping abt someone else. She’s always trying to make ppl seem so low. I go to school but once out of the week on sundays I chill with my bf which isn’t every weekend because he works & sometimes I’m busy myself. Sometimes it’s every other week & she doesn’t like him cause he’s dark skin so she said u prefer to be under your big tall ugly bf instead of going to the dermatologist or being like those girls on instagram. She said she sees girls my age shopping at the mall at Gucci etc and she’s like how come I don’t do tht. I told her she don’t know how these people get their money. I don’t envy a soul!! If I even stay out past 9pm with him she starts blowing up my phone saying to go live with him & get married and how I need to return her house keys. But if I’m alone or with my older brother she doesn’t even care. Wtf. Even when I’m with family (my dad side) she sends me long essays saying just stay with them.