It is interesting that you specifically say that you have porn cravings. For me, the cravings for porn typically disappear after a couple of weeks, and the cravings turn more into cravings for sexual fantasy. that is also always how a relapse to porn starts for me: first fantasies and ogling, then porn subs and then porn. Nonetheless, I hope your cravings have disappeared by now. It doesnt feel unlogical to me that the cravings come after a night out drinking, socializing and reduced sleep. You could avoid it, especially if you don't get much pleasure out of it anyway, or prepare yourself for it next time. Just being aware that urges may come in a specific situation can help to reduce theur power, especially if you have script with alternative activities ready.