Pleasure and Reality principle?

Pleasure and Reality principle?
Sigmund Freud came up with two different principles as we discussed in class. One is pleasure principle, which the pleasure overtakes the other factors. Reality principle is where you put pleasure and ego aside to get yourself a reality check of what life is like. The two were apparent in both Hamlet and Oedipus. I found something that demonstrates the pleasure and the reality principle really well; drinking.
Alcohol has an effect of making somebody feel good during intoxication and forgetting their suffers atleast for the moment. For instance, if I was drunk before the day of the exam, I would stop worrying and keep on drinking more. That seems to be the pleasure principle you get from drinking. Yet, on contrary, the reality check comes after the awakening. When you wake up in the morning, and you have a hangover, that’s what you realize that what you did the night before wasn’t a smart idea. If you’ve missed your test, then, drinking really was your reality principle that wakes you up from it.