Arbor - I had 2.5 years and was mega fit and mega focused. I went on a business trip in May 2012 and the chap I was travelling with told me it was ok just never do it in the UK. I was weak and went along with it. In all honest it probably took a year and a half to get back to my worst...i thought I could handle it and just needed a reset. have been drinking around 30 bottles of beer per night....put in 30lbs in the last 6 months, not run for 3 months. If you're like me you'll never be saved unless you stay sober.
When I went on that business trip I was a hundred percent sure I had moved on and was a differrent person....im now fighting for my marriage and scared the detox might do me in.
6 months is awesome, stay the course, it can be boring but you'll never regret not drinking. I would gibve anything to be where you are, you should be really proud mof your acheivement.