Can counseling take me out of my horrible misery?

ive been miserable since like 2006. im 17 now. over the years more and more family members keep dying and my mental and physical health has steadily gone down. i have a lot of mental and physical problems (and the deaths sure dont help things out) sometimes its hard for me to explain my problems or my fears. i just hate myself and hate my life. i know my family that died dont want to see me saying this but its true. i hate life and i hate myself. problems and things that bother me occur every single day. the only peace i get is when im sleeping. somebody please help. does counseling help? how and why