Simple solution, don't post your methods. We're all here because we can't decide on how to die, don't expect your method to suddenly rezonate with people.
There will always be a way things can fail, and always be people to point it out to you should you mention it. It's up to you to tune out what you don't care for and gather what you do.
Sadly there is no 100% methods. People tried 13 times to end but no avail. some try once and did it , envy .
There is without a doubt methods with 100% success rate should the method not be blocked by an outside source.
One could theoretically attach bombs to every inch of their body and blow themselves up, so long as the bombs explode they will 100% lose that physical vessel if that vessel is at the level of the average human.
The feasibility, barrier of entry, and implementation is what stops people, not the success rate.
People cut their arms and die, despite the low success rate. People shoot themselves in the head and live, despite the high success rate. These people believed it feasibile and had the means to do it, but only the successful implemented it correctly.
Success rate is the average, not the result. You could kill yourself with a paperclip theoretically so long as your implemented your feasible plan correctly.
No, I'm not saying that people don't want to die, I'm saying they don't feasibly do their attempt in a way more aligned with success. We could theoretically shoot ourselves in the head with a shotgun while leaning over a bridge, causing us to fall off said bridge and hang us from such a height our head would pop off our body landing into such cold water we would experience frostbite, no doubt causing death if properly implemented.
The truth is, most of us are too mentally ill to view our plans from a logical perspective, and those that can often feel too depressed to care. We see the result we want and not the result itself. We want to die, but we want it so badly we hinder ourselves from dying.