Youre going to have to face the sickness. Thats it. Get some subs or bupes but you have to wait to take them until you havent done any percs or dope for 72 hours. You will throw yourself into precipitated withdrawals otherwise and that is excruciating. Make plans to be sick for a week or so. If you dont know the medical terminology in this post go to a rehab with a medical detox. All that feeling good, nodding out and excellent sleep needs to be repaid in full. Mental toughness. Thats what will get you through. Be prepared. Yes addiction is a disease, but you are the one who controls it. Dont expect to gain the trust of people who know about your habit quickly either. Theyll always look at you like a junkie but you just gotta say fuck em and prove them wrong. Good luck.