Hello,
Thanks for posting. I’m sorry that you feel that you are alone in this. I hope that you can get some support for yourself as well as your son, because what you are dealing with is very hard.
I work for a charity called The Icarus Trust that is set up to support people who are dealing with the impact of a family member or friend’s addiction. If you contact us you could be put in touch with one of our Family Friends, who you might find it helpful to talk with. They are trained and very experienced and can help you to know what support is out there for you.
You can contact us on help@icarustrust.org or visit the website http://www.icarustrust.org
All the best.