to piggy back on Dee, there will always be a "good reason" to drink some more. If you are anything like me, you will start to think about how you need to quit but not today, not tomorrow, not this week and before you know it you can go months, years, a lifetime continuing to drink. 12 days is a long time, why would you want to throw that away and start over? You can chose to do whatever you want and it sounds like you are itching to drink some more. I doubt that is the right thing to do though.
How do you relax without alcohol? By relaxing without alcohol. Really, you can only relax without alcohol once you practice doing relaxing things sober. So it won't be easier next time you have a vacation if you give in and drink this time. This stuff gets harder and harder as we progress.