I also tried ......
..... many many times (!!) to detox off opiates on my own. I even went upto 3 weeks without any after the detox. However - the listlessness laziness tiredness dysphoria never totally went away, and I always ended up starting to use again. I am now in recovery since 11 months after using opiates on and off (more on) for 16 years. The problem with the 3 then 2 then 1 then 1/2 solution is that it indicates you are thinking too much. Thinking requires a brain. And that is where the addiction/dependence lies. The diseased brain cannot heal itself. Anyway good luck with the detox.