You have to slow down . As you found out a 5mg is too much now.
It s best to taper down only 1 or 2 mgs once you hit 30 mgs.
Don't go up anymore. It is worse to yoyo your dose.
Just keep your head up , you can do this, take it slow put 2 weeks in between your drops, methadone is harder to come off of then pain pills. but you can do it