Frustration is a kind of pain

I realized today, that frustration is a kind of pain. Living with people who treat you like a fuck up is very frustrating...and debilitating. I have a job interview on Tuesday but struggle to find a way to tell my parents as such...seeing as they view me as worthless and unable to do anything on my own. I'm scared they will sabotage my self esteem right before I go in and then things will turn out as they predict. It's shitty. I don't know how to tell them, i feel paralyzed and in pain. I was trying to be body positive today and wear shorts even though it is still a bit nippy here for it. I love this one pair of shorts and i was trying to reward myself and assure myself that is nothing wrong with my body and if I feel confident enough to wear some cute shorts, I should go for it. My mom immedietly pounced on them, saying they were inappropriate and i should just wear pajama bottoms. I think she would of called me a slut like she has in the past when I do such things, but my little sister was there.  Spring break from my college classes is almost over and I feel like throwing up. I was so distracted this past semester and in pain, that i sit with a D in Chem. They tell me i'm going to fail, and I don't want them to be right. It's just so hard to focus. I want it to stop hurting...