Ok im 33yrs old and used drugs since i was 14, i got off heroin and got on methadone for 5yrs, long story short i cold turkeyed off 300mgs using alot of xanax, now im stuck on the xanax for over 2 months, i have a high tolerance, somedays i take 20mgs a day, i know i cant just stop after so high of doses, should i go to a rehab and get detoxed off of them?