Four years ago this October I decided to stop drinking alcohol to learn how it affected my wellbeing. I called the experiment a Year With No Beer.
The most difficult part was dealing with social expectations. Weird looks for drinking something other than alcohol far outweighed any interest in why someone might do such a thing.
I'm telling you this because (1) I'm doing it again, and (2) if you think you would benefit from being more focused, happier, funnier (really!) and probably a "better" human being, reach out and share your experience.