Juler,
You hang in there sweetheart, try to find some happiness in your life whether it's in your kids or a hobby. Since your tolerance was through the stratosphere, there probably isn't a drug that will give you an exact replacement and since you are through the worst part of the withdrawal, Suboxone, Sublocade, or Methadone are gonna be the only 'acceptable' drugs that doctors will prescribe in the United States that will even come close to replacing that void on your opioid receptors. I've been where you are and through it all the thing that worked for me was realizing my problem and going through a lot of trial and error in my search to find a suitable replacement for the hundreds upon hundreds of OC 80s I purchased from farmacias in Mexico. I thought my search was over when I discovered methadone. After years of paying absurd amounts of money, I decided to detox myself by 10 mg per month. At the time, I was on 160 mg of methadone per day. Thirteen months later, I get my dose down to 30 mg. The clinic changed my treatment to a private doctor. I tell the doctor Ive been using marijuana to help with the withdrawals so when I come in for my refill, my urinalysis is gonna have THC in it. He said 'No Problem.' I go in, pee in a cup for my refill, the test is positive, and I meet the ABSOLUTE WORST NURSE I ever met by the name of Linda Hixson. After 13 months of detoxing, she cuts me off cold turkey at 40 mg. I've never been so sick in my life. The difference between withdrawing off an opiate like methadone vs. one like oxycodone is on methadone, by day 4 or 5, the horrible withdrawals that you have been running your life are just getting started and it does nothing but get worse and worse. On oxycodone, by day 4 or 5, you are looking at the light at the end of the tunnel. Juler, you will be in my prayers and I wish you the very best in life. Sorry for the long post and name drop, but that woman deserves so much more than I can do to her. Good Luck to you and your family. You may want to listen to your son, for he is smarter than you probably think.
P.S. Cannabis and Sublocade is the combination that has my mind content from using these days. Thanks for your time