Thanks for the kind thoughts of most here, it is appreciated. I've been sober/straight for the last 3 days, feeling pretty good. Had some mild withdrawal from codeine but nothing major. Hopefully this depression lifts soon. I do feel a bit clearer. Have found myself some really nice LSD, had a half-dose yesterday at work. Now, LSD is a genuine effective anti-depressant.
Thanks man. I don't want to trouble anyone; I have enough experience dealing with mental illness to have an awareness of how this shit will play out but you're right, this depression is/was deep. And yet, during it, I still get huge rushes of insane contentment and euphoria when I simply KNOW I am on the right track.
Getting better I hope.
I'm not actually addicted to heroin. I haven't actually used it in over four years. My remark was a flippant retort to Kittycat who said oxycodone is a better anti-d than codeine, I 'one upped' him...

It was a facetious line of conversation. I haven't even been tempted to take heroin once in the last few years... I appreciate your thoughts but figured I should explain what's really happening. The opiates that I use tend to be codeine and occaisionally methadone. I really really do not want to anymore, especially the codeine. The whole CWE worries me; I feel it is imprecise. I'm sure that I inadvertently ingest too much paracetemol and ibuprofen; this has caused me immense anxiety TBH, moreso when I just blithely continue doing it. Anyway, codeine is getting massively restricted in Australia now so its not viable any longer.
I'm looking into ibogaine. Every time I face a slight challenge, usually something emotionally difficult, I find my brain suggesting drugs. Maladaptive and destructive. As turk said, these things are not effective for mood modification in the long term. I literally feel a huge increase in suicidal thoughts when I am not on opiates. Its just abstract and with little emotional content, but it is troubling that my subconscious almost 'uses' suicide as a threat.
I actually do have a beneficial meditation practise, though I have been slack recently. I try to meditate for at least 30mins a day, in two sessions. I cannot describe how useful this is to me... Raw food diet sounds interesting. What is shadow-work?
The 'love life' comment needs context behind it to make sense. For me, taking large doses is just a fact, it doesn't really "suck". In my hey-day, I have taken enormously stupid doses of codeine, 1600mg, and (obviously) survived. I am sure you understand the concept of perma-tolerance. Even being abstinent from opiates for 12 months did little to reset my tolerance.
Interesting that you say "allowed". I don't think any addict (junky as you put it) allows themselves to get addicted. Addiction can bypass reason and conscience, it is insidious in that sense. It can hijack decision making to the extent that it feels like a genuine obvious and clear choice to use and not a compulsion- which it is. If you haven't had a serious addiction (though weed can be very addictive to some- not trying to negate your experience) it may be hard to understand.