hey vinnie, welcome! the agitation and irritability is perfectly normal for day 3, (i was terrible for it, and so not proud of myself for being like it) just gotta sit with it mate, it will pass in a few days time, its cool your aware of it though, thats half the battle, i find the best thing to do is voice it (on here if you like) just vent it out, to take the power out of whatever is agitating you, a problem shared is a problem halved ya know,
also try not to put yourself in any position which may bug you and cause you to hit the 'fck it' button...ifya know what i mean, ya need to keep yourself safe at the mo
n like i say, ifya need to vent we're here forya buddy, vent it out on here in a thread/blog/pm ..whatever it takes, best wishes mate
johnny