Fat shaming

My grandmother thinks I'm fat. Trust me it's not an overstatement. Every time I eat anything she tells me that I shouldn't be eating it or that I need to lose weight and it's driving me crazy. I hate myself and the way I look most of the time, and she makes it worse. I'm kinda thick I get it, I have big boobs I get it. "Because I'm short it means I will have a hard time losing weight" I'm tired of hearing it. I don't eat as much as I used to and i work out very night but it's still not enough. This is me.