Raw vegnism and Methadone

I am on a fairly high dose of methadone every day. I don't want to be on it, but I know I wouldn't be able to withstand the extreme physical withdrawal, and I would probably turn back to heroin. Do you think a raw vegan/fruitarian diet would help at all with withdrawal symptoms from methadone? I have been raw in the past, and I am about %50 RV now, but it's hard because paying for the methadone clinic is keeping me from being able to afford an all raw diet. Any tips would be most welcome.