You will never be the singer she was nor do you have the inclination to kill yourself.
I'll never be the singer anyone was/is, can't sing a note since my voice broke and I was no longer a boy soprano in the church choir.
I have no intention of living in excruciating pain in a hospice..so I'll be saying "hook me up to the death machine, or fill me full of painkillers".
Obviously Sinead no longer wanted to live, bullies and harassers will do that to you if you're not 100% able to fend them off.
There is a movie "Last Cab to Darwin" (N.T.- Northern Territory) about a man wanting to be hooked up to the death machine.