Waylaid by an irish manhattan (gangs of New York, anyone?)?! Oh cruel and delicious fate! Anyway, I see your predicament. And a certain level of "planniness" to borrow a favorite term from a good friend, really undermines the whole capriciousness, the whole ad libitum aspect of a good revel, which in my opinion, sufficiently diminishes its ability to exhilarate, and to expel one's accumulated burden of stress/angst/stale energy. So from this vantage, despite pain which might have been avoided, strategy might still serve us better after the fact than before. Regarding the jittery wakefulness, I think that this is a fairly common hangover symptom, and there are definitely a few things to be done to counter it, some of which will be featured in upcoming steps. However, if you don't have the luxury of going back to sleep, that point is well moot. (Can there be degrees of moot?) No matter, more help is on the way!