Holy crap 4mg per day!!! Wow. I know the doc's say it's highly addictive but damn bro..that would kill most! Cheers.
In all honestly though...pills, alcohol, weed and all that are just masking the real issue = Stress Management / Coping abilities. Re-evaluate your routine maybe. My wife knew that I went to the gym for at least an hour after work as my "de-stressing" tool.
If you don't workout ..like 80% of GB that post on this site... communicate with the wife that after work you're stressed and on edge and you need to "enter activity here" (play your PS3 / Xbox) for an hour just to "calm down" so you don't bring your work stress home and out on everyone.