There's always someone you trust most. He/she is most likely to convince you that you are indeed wrong in your assumptions. Whether that person is real doesn't matter. The arguments are real, the dialogue is real, even if you only imagine it.

If you're dead, you're dead. If there's no one to mourn you and it's painless and too quick to notice, like death by an exploding sun would be, what does it matter?

But it does sound like quite severe hallucinations at least (not so sure about the delusions). Try to do what I suggested in the other thread. Take an extra dose of either Zyprexa or Seroquel, ideally after you've spoken to your psychiatrist.

And the other things I mentioned.