I have been taking painkillers for a very long time. My 'long time' is more or less 10 years. At the beginning they were working very well.
When the dose I was prescribed stopped working I'd up it a little bit. From 10mg of Codeine to 20, from 20 to 30 and so on. When Codeine stopped working my GP topped it up with some Amitryptiline, then Nortriptile, Gabapentin or Pregabalin.
Unfortunately after a few years when I reached a maximum dose of everything, my body got so used to them that they, on a good day, just take the edge off. They never make the pain go away.
I'm so used to taking painkillers that the dose needed to get rid of my pain would kill me.
I learnt how to live with it. It goes where I go, it's with my whatever I do. But my pain is not my enemy any more. It's become part of me, part of my life. Acceptance, not that long ago actually, made it easier to exist.
I have a normal life, full time job, very happy home. I stay a happy and positive individual. :)
I changed what I didn't like and accepted what I couldn't change.