There are a lot of times in a drug addicts life, where things have got that bad, the only line you can resort to is;
"Oh well, what goes down must come up! When you hit rock bottom, there's only one place you can go- that's up!"
This is when you've failed rehab six times over, destroyed your family, hurt your friends... and actually come to the realisation of your actions.
So I feel pretty confident in stating that the statement above, is not true.
Sometimes, when you hit rock bottom, there is no way up. Subsequently, you roll onto your back like a tortoise with your legs flailing in the air for evermore.
This is called denial.
But, while you still have good intentions, keep those legs peddling. Hopefully you'll be the lucky tortoise who eventually rolls over and finds solid ground.