Oxy Contin is some heavy shit they probably gave you Oxy Codone.
It's the same thing.
I work with men struggling with addiction, mental illness, eating disorders, etc. and in my experience, almost everyone with one or more of these issues has had traumatic events happen in their lives, and usually in childhood. We, as addicts (including myself), are trauma survivors. However, we addicts still need to claim responsibility for our actions, including all the lying/stealing/selfishness, etc. that happen in active addiction.
I could ramble but I wanted to say that I've been clean from drugs and alcohol for 2 and a half years. Luckily I've had the opportunity, resources, and support to get clean and stay clean, but I've also put in a lot of work. You have to stay up on your game, whether that means regularly going to meetings, meditating, taking psych medications, practicing your spirituality, or anything else, but community and connection with other humans is what I think is most important. Isolation can kill.