Davey,
I can't say I know what you are going through, as my issue is booze not pills, but I just lost a dear friend to drugs. I never even knew he was using.
I hope you stay with us as the poison that is out there today will literally kill you.
But as to your question, it does get better, every day, provided you stay clean. Your brain does heal. You will be happier.
That I can promise. And the alternative is simply not worth it, no matter how good it seems at seconds. That is the trick the AV pulls, to make something that will kill you in exchange for escape seem like a good idea.
Really?? Thats not you. You know better. That is the AV.