Tbh if I ever saw myself ready to hang myself and I got a slight ray of sense (a.k.a. pussying out of it) I'd realize that I would probably feel free.
You are about to kill yourself. Life is over. Society and its laws have failed you. You are already dead.
Fuck civilization and politics and all of that bullshit, it does not matter anymore. Nothing does at that point.
I'd just either try to buy myself a horse (preferably) or some motorcycle, or even just go by foot, but simply run into the woods, or go into the wilderness.
Maybe you'd find it hard to find food or water, maybe you can't even last two days, but once again, you are already dead. It does not matter. If you ever get too bored or too hungry about it, or get a bad fever, just hang yourself on a tree.
It's over anyways. You're dead. You're free.