People hear but they can't listen

How do I tell people that I'm lonely even when I'm not alone? That I'm breaking surely from the inside and everything's going to show, that I've become self centred for once and I don't care about people anymore, I don't want to keep them. That I don't know how much longer I can live like this, waiting but I don't know what I'm waiting for and I'm scared, angry because I can't convince myself anymore. I can't.