I got completely off methadone years ago and never went back. My daddy told this friend of mine, "If he can do it, anybody can do it." I think the worst thing I ever did while getting off methadone was that I talked to other people about what it would be like, because, unknown to me, I became a hypnotic subject, and for me, it was not a lot of fun at all. It was like I expected.
The mind is incredibly powerful.
You can demonstrate its power to yourself if you have two or three minutes and another person close by.
Have the partner hold one arm straight out, parallel to the ground.
Instruct this person not to stiffen any muscles nor make any muscles limp.
Press down on this person's wrist to calibrate the strength. Just push lightly but enough that you could get an idea how much resistance you get.
Now have that person repeat the word, "Yes", and say it with that person, about ten times.
Press down on the wrist again. (Keep quiet for now about any changes, until you have gone through this process.)
Now have that person repeat the word, "No," about 10 times or so, with you saying it with that person.
Press down again. (Keep quiet about the results.)
Now you take the place of that person, with the same three muscle tests. And it doesn't matter who goes first.
One more thing that you might, or might not, want to check out.
Have the person hold the arm straight out. Now push down along the shoulder area, down to about the middle of the biceps. (You can press anywhere, but this is where you feel the greatest difference.)
Now, touch the shoulder lightly(optional), saying, "I want you to pretend that your arm is a beam in a big skyscraper, an iron beam, a very strong iron beam, and it is in this skyscraper and it is holding up enormous weight with ease." Say that a couple of times, and repeat, "Pretend just like you did when you a little kid, pretend that that arm is made of iron."
Now press down again.
And then say, "Let's forget the iron bar. Now pretend that your arm is just some ordinary arm and you have been holding out a bucket of water in that arm for as long as you can hold and now it is at the point that you can't hold it anymore, because that arm is getting weaker and weaker and weaker and weaker and weaker.
Test again.
By the way, it sounds to me like your deal with methadone is over. It's done. Finished. You are clearly a most remarkable individual.