I personally have always found the thought of permanently ceasing to exist to be something that is incredibly comforting as after all to die solves all problems, nobody can be harmed by not existing and there are no disadvantages to being dead.
Suicide is the ultimate form of self care as it's the way to take control over our inevitable fate and free ourselves from this existence that we were so cruelly burdened with, but for me the problem lies in the fact that we exist in this anti suicide society that restricts more peaceful method options, if I had access to Nembutal I would feel very comforted by the option of suicide but sadly that's not the reality in this hellish world. But I certainly envy those who are already peacefully not existing.