If you're an alcoholic, thinking that drinking will relax you is like thinking you can put out a fire with gasoline. You've done a great job on TWO AND A HALF YEARS OF SOBRIETY!!!! That's wonderful!!!!
A daily meditaton practice has helped me to get a lot of insight into my own behaviour, why I do what I do, why I care too much and so forth. I don't fee like I need to switch off from those things any more, because my insight has helped me change my thoughts and behaviours. Maybe it could help you, too? It's worth a try. Let me know if you want some resources.