That's such a huge temptation and really, no one could blame you for falling into it. I remember a young heroin user here (age 14) three years ago talking about his situation this way:
I don't care if I die, - this is
The only thing that makes me feel alive.
Itís my friend - my friend to the end,
And I will do it again, and again, and again.
Itís such a nice warm place to be,
And I never ever want to leave.
It's rough getting trapped like this, but there's the danger. I'm glad you're talking about this and realizing what a problem you may be getting into.
Not trying to lecture you - just commenting from experience. Perhaps we could meet again in chat and talk about things further.