I hate my life...I want to die.?

I hate my life. I don't want to live anymore. I feel so alone in this world and even though I know my family loves me, it just doesn't feel like I am ever not alone. I have considered suicide... I was a t a friends house and when she went down stairs to say good bye to her mom, I almost jumped out the window. My friend caught me and call the suicide hotline with me. I have tried to over dose but it doesn't work. I hate my life and I want it to end.