I would TRY stay far away from any other addictive substance if you can at the moment.I hear methadone is the worst to come off ...We are here to help all we can ..
DUDE I WAS ON 80 MG'S OF METH AND WALKED OFF THE PG. YOU ARE GOLDEN IF YOU JUST QUIT NOW THE WORST SIDE EFFECT WOULD BE HAVING TROUBLE SLEEPING WHICH YOU CAN TAKE AMBIEN FOR.
I'm not real familiar with methadone but 5mg doesn't seem like alot! Sounds like you're doing great and want to stop! Personally I would go as long as I could without!