I can understand that in my own way. Have plenty of rants on this forum to provide evidence. I can't say I know what to tell a person when they are feeling as you do- because I don't know what I want someone to tell me either.
Usually I just end up hurting myself because I am frustrated with being here. And frustrating with trying to die.
Just say what you need to- no matter how crazy or illogical it seems- maybe that will help?