A bit about my life (vent)

So i'm teenager who don't have friends in real life. Nobody likes me. I think my family don't love me. I never heard my parents comfort me or compliment me. I think i'm not needed in the world. If i will die the others life will be happier, but i can't die. The problem is that i'm so afraid of death and the pain. Also my online friends don't text me so much. I think they just don't like me now. I have nobody to talk. What can i do? I would like to meet someone online and be important to this person but i know that I will leave this person after a week because I'll be bored writing with this person. Yes, i know that i'm a red flag. I wanna just die