If you are not ready to be done with opiates, suboxone or methadone are great in a harm reduction sense. However, they are much harder to get off of and you are still activating your opiate receptors every single day.
You could taper with something like kratom, or even on the H, or you could look into something like ibogaine. You could also taper with suboxone over a 5-7 day period.
And, yes, quitting short acting opiates cold turkey is a horrible experience. However, it IS do-able. I would recommend getting out of town to do it. Somewhere where you can't score. The psychological aspect of going cold turkey is one of the worst parts and removing yourself from the situation helps a lot.