What did I do wrong?

It’s ok to be burden. No living creature exists without ever taking anything. You don’t have to justify your existence. And you don’t have to die to make other people more comfortable. They are capable of walking away from you if they don’t like you. Living in isolation is terrible, and maybe not worth living, but I’m done with hating myself for being burdensome. I didn’t ask to be born and to have such a hard time finding my way through life. No one owes you a relationship, but you also don’t owe anyone optimal functionality or happiness. You don’t owe anyone anything. You have just as much a right to exist as any other creature on earth. You don’t have to be likeable or lovable or even good all the time. Cut yourself some slack – you didn’t ask to be born.