My dad died when i was a y/o

My dad died when i was a y/o.So, i live with my mom and my elder brother(he is 18).I'm a 14 y/o...So,what exactly happens with me is that my mom and my brother team up..and i'm the one who is left alone! Together,they laugh at me,they make fun of me and the worst is when i tell them that i'm not feeling good...my mom is like "girl,stop that drama!" I dont do any kind of drama! Why cant she take me seriously? Why does she make me feel bad about myself everytime?Why she scolds me for everthing but never praises me for my good deeds?Its like she bullies me everyday! I don't wanna live this way! My life is like hell! I've already made 16( or even more)suicide attempts but i'm still alive! :'-(