Moderation the enemy of quitting?

Stop me if you’ve heard this one before.

Man hooked on sex, drugs and alcohol almost dies from all 3.

Draws a line in the sand and leads a clean reformed life from then on out.

If good is the enemy of great then is moderation the enemy of quitting?

Sonia finds herself wishing for a near death experience just so that she can quit alcohol in peace.

You see her friends seem to never pester Petunia who almost died in a drunk car crash but will peer pressure Sonia every time she tries to have a sober night.