I see the idea of practice as a bit redundant. When someone is really intent on going, they're going regardless of any sort of pain the rope causes. I'm not diminishing the pain, I've messed around myself and misplaced the rope and I couldn't swallow without pain for a few days. It's not pleasant.
I always imagine that I'll only be ready when I have truly reached the end of my mental tether. I imagine the fictious scenario of me HAVING to end my life to evade a grave situation. For example, you have committed a crime and have been found out by the authorities and your arrest would eventually result in a life sentence. Or a group of violent cannibals are outside your house in a dystopian universe and you have to die before they subject you to a far slower and tortuous death. We need to be in a really fucking low place before we flick that switch which maybe accounts for, perhaps, a small percentage of active users of this forum. As for the rest of us, we're just not there yet.