I guess that many people get so desperate and all that they want is to escape which allows them to get over any fears they may have. With having SN it means you have a way to exit for when the time is right by your side. I know that for many it can be a relief having the option of SN. I think that it sounds easier going through with ctb with a method like SN rather than hanging or jumping, but of course we are all programmed to survive and the SI can make ctb difficult no matter the method. I understand being tired of everything, life is just too cruel. I hope that you find freedom from your suffering. Best wishes.