Hello. I'm so sorry that it's gotten this bad for you.
I know that you feel so done that you just want to hang yourself ASAP. However, the risk of brain damage is real. You don't want to be found early under any circumstance. Trust me, if you're found early, you may be worse off than you are now, especially if you become quadriplegic. So even if you're feeling careless, the brain damage can be very severe. I'm not talking about decreasing your functioning...I'm talking about becoming a vegetable, but possibly being conscious and aware(there was a dad in England that had this happen...he is trapped in his body in an absolute living hell). So be careful, please. Losing motor control is a real risk, regardless if it's something more minor and temporary, or extreme and permanent.
A belt is usually not recommended for reliability. Like @Soul said, look at the resources section. There's a ton of info on there. Partial suspension is less painful, but it's more difficult to work out. Full is generally more simple and reliable, but it's usually more painful.
I could be that person to say 'one day at a time' to you if you'd like ;) We're here for you man. I really hope that if you attempt, you take my advice about caution. I also hope that you find peace.
I wish you the best.