Bad and self-destructive

What's bad and self-destructive?

Drugs. Drugs are bad and self-destructive.
Smoking. Smoking is bad and self-destructive.
Cutting. Cutting is bad and self-destructive.
Drinking. Drinking is bad and self-destructive.
Burning oneself. Burning oneself is bad and self-destructive.
Bruising oneself. Bruising oneself is bad and self-destructive.
Hitting one's head against a wall repetitively.
Taking fire to your skin and not moving it.
Letting yourself fall in with "the bad kids" and finding yourself in sketchy ravines buying drugs.
Exercising until you pass out.
Intentionally rubbing your skin until it's raw.
Slamming doors on your fingers again and again.
Holding ice to your skin just to make it hurt.
Not going to school.
Isolating yourself when you really, really shouldn't.
Hating yourself.

But I don't know. Some of these things aren't all bad...