Always heard withdrawing from opiates wont kill u but u wish u wud die...but stay strong man! U can make it thru ^.^ Have u considered methadone? Not a good thing to stay on as it wud become swapping one addiction for another,but it wud help to start out with. I have heard some ppl have success going from opiates,to methadone,to kratom,and finally to being sober.
It isnt an easy road,that is for sure. However,one of the greatest tools u have is the community here willing to listen and give u support,best of luck!
Pariahprose