Quick background on me before I offer my thoughts. I hope my input is useful.
I have been doing drugs, since the age of 13. Daily since 18. I just turned 29. I've been addicted to nicotine, marijuana, cocaine, alcohol, and morphine. I know what you're going through. Here's my thoughts, I hope they help.
1st) nicotine is considered by many to be the most addicitve substances in the world. You've broken the addiction to nicotine, you can definitely break your addiction to oxycodone (the ingredient is percoset). I've personally broken the addiction to nicotine and morphine. Nicotine is harder in terms of willpower to quit than morphine (heroin).
2nd) taper yourself off the drugs. Start at 45mgs/day, go to 40, then to 35 etc.... This will help get over the mental addiction because you won't be achieving the "high" but you won't get withdrawls. Talk to your doctor, there is a drug he / she can prescribe that will prevent your body from felling the "high" from opiates. You can eat them w/out getting high, but avoiding the physicalwithdrawl.
3rd) plan a 1 week vacation from work. Use this time to detox off the drugs. The rough part only last a few days. If you can afford it, check yourself into detox - they actually can knock you out for a couple days while the opiates run their course. If you do it on your own, have someone who can help you through it. A friend to sit with you. It would probably be best not to let your kids see you during this time. It's going to be a tough 3 to 5 days. You won't be yourself (i think if kids saw a parent this sick / depressed it would be traumatic). When I detoxed of morphine I lost control of my emotions for 45 minute spurts every few hours. I was sick (like a bad flu) and somewhat in pain. Just remember it's temporary.
4th) figure out why you want to quit. Make visual reminders and keep them on hand in your everyday life. Pictures of your kids. Money? You're spending $6,000 - $12,000 / year to be in a good mood. What else would you want to do with that $$?
5th) pick a date to quit. Nothing immeadate, nothing drastic. Mentally prepare for it (and taper off).
6th) go to your doctor and have your liver enzymes tested. 45mgs of percoset for 1.5yrs have done their damage. This may scare you - a good motivator (you also need to take meds to repair your liver - even if you don't quit the drugs do this). Cyrrosis of the liver is irreversible. Hela it before it's too late.
During detox:
the most important thing to remember is that the problems aren't real. Your brains chemistry is going back to normal.
If there was a situation or an event that triggered the drug use, be prepared to face it. Those emotions are buried way down. And they will come up quick.
Take hot baths or sit in a hottub. Your body will experience some pan, this helps.
Don't isolate yourself. Go outside as much as possible and walk around. Try to read books. All of your thoughts and energy will be focused inward, which will intensify the negative feelings.
Document the struggle. Write a journal about how bad you feel, take pictures of your self, record your voice talking to yourself. When you get the urge to do pers again, refer back to thse materials. They will bring back the pain of detox and make doing the drugs seem less appealing.
Here's some supplements available at any drugstore that will help:
l-tyrosine - replenishes dopamine.
5-htp - replenishes serotonin
st. Johns wort - increases serotonin
(the drugs have thrown your brain's production way out of whack).
Melatonin - induces rem sleep (the good sleep where your body recharges).
Hope this helps. I detoxed off morphine (active ingredient in heroin). Days 1 thru 3 were the roughes. By day 4 I was on the other side of it. By day 6 I was back at work (i works in sales cold calling all day).