Help Partial Hanging, WTF am I doing wrong?!

[KthxBai]

I'm trying to do the partial hanging method, I have tried a necktie as well as a rolled up scarf with a slipknot that should apply enough pressure on the arteries but no matter how I apply it, I only ever have trouble breathing and swallowing but dont get lightheaded or feel I'm getting unconcious…WTF am I doing wrong, is my knot placement just wrong? I've read that if you feel your head pounding you're doing it wrong but even without hanging I cant seem to find the sweet spot for my arteries…
Do you have any tips or advise?

 

[Worndown]

Probably not enough weight on the ligature or the knot is not sliding.

 

[lostchildsg]

I previously used a necktie and tried using consecutive looping around my neck. The trick is tight and fast and best to be in a standing position. But I failed as I blacked out and hit my rubbish bin chairs around in my room and ended up alerting my parents due to the ruckus.

 

[Suicideorgy]

Just my 2c, i also never got it to work. Same exact issues as you though i used camping tent rope