It's matter of perspective. Some people really wants to continue believing a lie, for them death feels like the last option, the ultimate despair.
In the other hand, somebody who is very convinced could be somewhat relaxed. Specially people who really believe in the peace of the nothingless will suffer less. For them, it's the nost important part of life: a dignified ending.
Apart of your thoughts, the method can really be decisive on this. It highly depends of the method, the less pain, the less trauma.