Ex-crack-cocaine addict???

[beena]

SWIM has been using crack for 8 years, prescription painkillers like tramadol and MST for about 2 years and heroin for about 1 year. Her boyfriend has been using crack-cocaine for at least 15 years and although he only does crack he is a very heavy user (SWIM has seen him go through over a grand in a night and seen him put a £10 rock on a pipe b4 and smoke it in one go). SWIM and boyfriend have come off crack several times in the past (the longest was for about 6 months) but can't seem to stay off it. Every time they've stopped it has been by going away out of the area where they live for a while (for example SWIM's bf has been away to rehab b4 and also SWIM has gone to stay with her parents to get clean). The problem is always when they come back to London.
SWIM is on methadone at the moment to help her get off heroin and opiates....SWIM thinks she can probably do it cos it is a more recent addiction and cos the methadone obviously helps with the withdrawals but the reason she still uses at the moment is cos she is still using crack (and then gets h to comedown).
SWIM and her bf have been told repeatedly to split up cos it's so hard to get clean by oneself, let alone when theres 2 of you but they really do love each-other and want to be together and they both really want to quit drugs.
The reason SWIM is writing this thread is that she wonders if there is anyone on this forum whose main addiction has been to crack-cocaine (rather than heroin or the 2 combined) and who was smoking as much as SWIM and bf have been (ie smoking almost every day and usually at least a sixteenth of crack at a time) and has managed to successfully quit using altogether for a reasonable period of time.
The reason SWIM asks is that she can't see how it is possible to quit and stay clean off crack: she doesn't know anyone who has. The only people she knows of who have had drug problems and got clean are people who've been using maybe half a sixteenth (top) and heroin each day, i.e. a little crack and a little heroin, or whose main addiction is heroin.
SWIM would really like to talk to someone who was a heavy crack-user and that was their main drug of choice and who has managed to get clean. Is there really anyone like that out there????
SWIM is starting to think that it will never happen and maybe it's not even possible when you're using at the levels her and her bf have been. SWIM will never leave her bf, even if that means a life of addiction.
Can anyone tell me that they've successfully beaten crack addiction?
How did SWIY do it?