Am i wrong? What should i do?

Basically i said i would quit Weed Because my mother hated it and For the first time in 4 Years i went to go see my dad and my mental health plummeted and i had terrible sleep issues so i started smoking again to help with that, somehow his friends got videos of me smoking and he sent those to my mother and basically Saying how he wouldn’t fall for my shit and caught me and they gave me ultimatum to stop everything in general including vaping which i find the hardest or they will cut ties with me, Ofcourse i chose to Stop it cold turkey And since then my mental health gotten worse and my Mom hasnt spoken to me in 3weeks because she is Mad and Dont wanna speak to me, This is the longest shes gone not speaking to me and even though im still surviving i feel Worser by the day and her not being there to support is not helping, anytime i try contact her she ignored me. I understood and gave her space yet now when its been close to a month i try urge her and she was saying how she has given up on me and she dont believe i can do anything and how me changing is a lie and its made me feel even more like shit because if im making progress its the same as me not making progress to her. I understand shes embarrassed because of my Dad and Mad but i feel shes taking too far and ive been losing it mentally. (Btw as much as i sound like it im not a kid im 21 But have strict family and has dropped out of university) Idk what to do and Feel like theres no point of me being here anymore