Hi there ~
I understand your concerns. There are many psychiatrists who specialize in substance use disorders who know how to get you off of the methadone
as this can also be an addictive medication. I believe that there is help out there, and you just need to call in and get yourself to a rehabilitation
center so as to get rid of the addiction. I also think that you might do well with consulting a local doctor first for symptomatic treatment of withdrawals once you stop using the methadone. I wish you the very best in recovery.
I hope this helps. Take care and have a lovely day!