Excuse my ignorance, but what is "ctb"? I can think of many meanings for the abbreviation but none relate to suicide.
My situation is a bit different. I would have no one to read a note. I'm in a foreign country with no friends living a reclusive existence. I have no ties to my country of citizenship. No family ties, and absolutely not one person would know of my passing. I'm 64 and running out of money fast. I'm in surprisingly good health still, but I could not live a beggar's life as a homeless old man in a foreign land, or even my home country. Besides being broke, I'm seriously deep in debt too, and I only have enough to live a few more months. 64 is not the time to start again from zero. I plan to end my life with no ID to be found, so no one will know who I am. They will throw my corpse in an unmarked grave and that will be the end of it. Once you're gone, it doesn't matter what happens to your body. Death is the great equalizer. There's something therapeutic about looking death in the eye and not giving a shit.