I didn't change my drinking habits when away. Figured it was important to relax at the end of the day and it can get boring in a van of an evening when the nights get longer.
In the main I tended to avoid seiging which may have contributed to low stress and no burn out. Rarely stuck with anything which felt like it would take more than three sessions max and mostly did stuff that was potentially onsightable or would go down with in a few redpoints at most. I think doing a few months of this is more beneficial to your climbing than a handful of stressful seiges, not to mention a lot more fun and less likely to produce a trip spoiling injury.I didn't change my drinking habits when away. Figured it was important to relax at the end of the day and it can get boring in a van of an evening when the nights get longer.
To some extent it will depend on what type of climber you are or aim to be.