There may be some pain depending on where your carotid arteries are placed, but once you can black out consistently, this method works with nearly any household cable or long, durable string; no need for a rope.
You will (ideally) pass out within seconds, but you need about
30 minutes total uninterrupted; if you're saved, you could be brain-damaged, but in most cases, after about 15-20 minutes, it is basically guaranteed
death.
https://sanctioned-suicide.net/thre...ng-dropbox-extra-details.192152/#post-2826495 (this is a direct link to a thread that is listed in the above compilation, in case you haven't seen it already)
Your base survival instincts will try to stop you from 1) the attempt and 2) going unconscious. If you're out, and the knot is tight enough, no amount of flailing around will save you.
Please be
absolutely sure that you want to go through with this before even making a full attempt; as the thread states, if/when you find that sweet spot, it's very easy to cross the point of no return. I hope that you find the peace you're looking for.