Why I should kill myself?

You are a young and probably going through hormonal changes. This shall pass. You'll survive.

you've grown so old, frail, sick, have zero hope of a cure for a physical ailment that gives you unbearable physical pain constantly and keeps you from being able to enjoy life at all. at least that'd be my take.

Not funny.

You shouldn't. You need to get help if you're seriously thinking about this.

You shouldn't.

You shouldnt