Need advice on my hanging method.

[heyismeman]

The way i plan to do it is slightly convoluted so I need someone's advice to make sure it would work properly. The idea is this, full suspension, first I'll tie the anchor and then I will make sure that the rope is already fairly tight, not enough to strangle myself but tight enough that it's full connected (no risk of coming lose) I will then put up a stand at a slight angle to the anchor point, about a foot and a half angle difference from stand to anchor and I will make it so the rope is using full length, then when I stand on the chair I will take a massive benzo dose, so when I black out my body will move a foot and a half back. Does this make sense to anyone? I would truly appreciate the advice or explain it further if it doesn't make sense