Honestly if support with different habits in daily life is what you're looking for, and you consider addiction a big part of the problem... you might get something out of AA like don't get me wrong people might still push their shit religious beliefs on you and people trying to sexually pick people in crisis up in a predatory way is a REAL ISSUE but... at least you will ultimately, legally, physically, be able to walk out the door if you want and people won't assault you for doing so.
(And at least you'll still be able to *go about your daily life* and practice the habits you want instead of being locked in an institution where your routines will be disrupted and controlled by authorities who'll then basically forget about you once you're out the door and back on the street.)
So maybe try AA? Some places there are also Secular Sobriety and HAMS (Harm reduction) groups.