Many, many here have and they'll be along to tell you so. Just this morning I was reading posts from two moms who consider it nothing less than a miracle that their kids are doing well today and each have over a year clean.
There are many double winners who post here, people who are in AA or NA and also here because they have codependent issues to address as well as addiction recovery. Several have many years clean also.
Read around and you'll see them.
As for our own survival, I can tell you that my life has never been better, I have never lived as well seeing the beauty in each day and feeling inner peace and serenity...and my son is still lost in his addiction somewhere. That's what Al-anon, Nar-anon and CoDA are all about...taking care of us and living healthy lives regardless of how our addicts are doing.
I'm not alone here, and I'm sure others will share about their own recovery too.
Hugs