If anyone can give me some insight on what to do, even in the slightest, it would be greatly appreciated. 

I’m 16. I’m having a hard time right now at home and I’m being pushed to my limit again, I don’t know what to do. I have a brother, 29, who still lives at home. Yes, he falls under that stereotype about 30 year old men livin in moms basement, plus the fact he has 3 children. That alone is enough to be frustrated with him. Now add that he steals from my mom, barks orders at everyone, doesn’t work, pins his kids on me and my mom, doesn’t clean up, breaks things, and he yells/ pushes me around when he feels like it. All of this my mom and my mom doesn’t say anything. Not a word. He hit me so hard once it left my shoulder and around my neck a purplish color and she told me I shouldn’t have made him mad.. No matter what I do or say to her , she will never ever listen to me when it comes to him. Even when he wasn’t there for his kids for 3 months and no explanation she would get mad and yell at me for talking badly on him. That’s crazy. I used to just tell myself it’s because it was just them for 13 years before I came, but it’s been a while. I was always made to believe that I don’t fit in here anywhere. No one shares my interest, no one cares what I do, no one cares about my grades, if I’m doing doing sports it might as well be irrelevant. She loves to rub it into my face that my brother was always so athletic and he was soooo good at everything, but I bring home straight A’s and she says she shouldn’t congratulate that because it’s what I’m supposed to do . I’m running out of options. I can’t keep living in a place where I’m clearly not wanted. I don’t have other family . My dad is not my greatest fan.