Bro you've only two options in Dublin. Just working hard without any distraction and earning a shitload of money or partying and coking.
The weather, the atmosphere, the greyness, the architecture, the constantly storm-like wind, the rain bro the fucking rain is killing you. I am not even starting with the junkies and criminals. Little kids (I mean 10 - 14 years old kids!!) consuming and selling drugs in the middle of the neighborhood, explosions (new year eve rockets and so) until late nights and so much more.
The people and the pubs are amazing though. I really love Dublin and the Dubliners but I wouldn't recommend living there.
Shout out to Ballymun, D11!