I think the two week thing is a hump in the road to get over . You're fresh enough to remember the routine and habbit of buying it . After about 4 - 6 weeks i think that habbit starts to receed . I think i was wary of exposure or even going down that isle in the supermarket for about 2 months . When it was christmass, after about 3 months i was able to buy drink for my mum and not worry myself about it as i felt confident in my non-drinking persona .
By giving up 2 weeks at a time you're giving yourself all the pain of withdrawl and not clearing that to where the noticeable benifits of sobriety start to kick in .
I really hope you get to it as loosing your job, houses and relationship to drink is not very nice . Sometimes thats what it takes though, it's what i had to go through to get to the point where the fear and pain of change was less than the fear and pain of carrying on .
bestwishes, M