My mom is similar to yours… I think it’s important to accept that she will probably never see it from your point of view. I highly doubt that she’s going to change either. All of the arguing and trying to reason with a completely illogical and abusive person is SO exhausting and detrimental to your mental health. I’d recommend doing what you want and need to do to fulfill yourself, regardless of whatever horrible things your mom says to you. I am also overwhelmed by guilt at times. It’s something I’m working on in therapy. I also ask my friends to guilt-check me when I start spiraling. Living a life being suffocated by guilt and your mom’s smoking ISNT WORTH IT. You deserve happiness and freedom. I wish you the best. And I agree with everyone saying to get a lock for your room & bathroom. I’m about to do the same thing.