Everyone would love to laze by the pool in Malibu and get better but I'm pretty sure you could find more economical programmes in more realistic surrounds if rehabs what you want...
this is the database of treatment facilities US
https://findtreatment.samhsa.gov/
Its searchable and you can refine the results according to what you want.
There's also the Salvation Army - free programme but it's 6 months duration
https://satruck.org/Home/NationalRehabilitation
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