Sorry I didn't word that properly, I was in a rush. I meant I read a lot on reddit about PEOPLE who attempted hanging and blacked out quickly and painlessly, only to be stopped because someone discovered them or the rope failed because what it was tied to and gave way. Strangulation from hanging is more rare apparently, it is more often that the carotid artery will be cut off and you will black out and lose consciousness. Here are some links, google has heaps of info, just gotta dig a little deeper.
http://alt.suicide.methods.narkive.com/8IDF6nYI/some-last-problems-with-suspension-hanging
http://alt.suicide.methods.narkive.com/wpy3r4Hj/hanging-method-problems-blocking-the-carotid-artery-in-practice-runs
https://www.reddit.com/r/AskReddit/comments/1aweub/people_who_have_tried_to_commit_suicide_by/
http://ash.notearthday.org/suspension.html
https://groups.google.com/d/msg/alt.suicide.methods/q0TN03lYVec/68Vt9EWNZMMJ
https://groups.google.com/d/msg/alt.suicide.methods/q0TN03lYVec/cmp0D88PPG4J
https://en.wikibooks.org/wiki/Suicide/Ligature_strangulation
The myth is that hanging is supposed to break your neck and that is what kills you but that is partially untrue.
Anon, it can take a while for you to die while hanging, don't let that stop you. You should lose consciousness in well under 30 seconds if you're restricting the carotid artery. Also research the basic stuff like how to tie a noose, how to tie a rope to a tree etc. Noose placement is very important and please don't be found hanging, you don't want to be retarded and for the love of god please don't tie the rope to a fan or do it in your closet - although a lot of people have managed to suicide with a belt in their closets…
Research: arterial compression hanging, carotid artery hanging etc.
I'm probably going to learn how to use the deep web instead and do a drug suicide in a few months, (darvon cocktail recipe + opiates), I'll keep you all posted.