Found some confusing quotes. Could someone please explain what these quotes mean?"You have made your choice, your death is the doing of your...

That's a multi-part question.  Please, only one
question per day.  But, I will try to explain these three characters'
motivations.

Choragos:
He's the head of the Chorus, perhaps the actor who carries the most clout.  He's a
intermediary between the actors and the audience.  In fact, he represents the ideal
Greek audience, someone who is logical and not passionate.  He listens to reason and
doesn't choose sides in the dispute between Creon and
Antigone.

Creon: He's after
power.  He wants to re-institute law and order to the land after the bloody civil war
that ravaged Thebes.  By doing so, he becomes a tyrant who turns his back on his own
family and the will of the gods.  He is not swayed by mercy, and so he rules without
regard for
consequences.

Antigone: She
has a death wish.  She's the overzealous Romantic heroine who wants to live fast and die
young.  Yes, she's correct in her convictions, but she carries them out to dire ends.
 Like Creon, she's stubborn.  She does not look for appeasement or moderation, and so
she suffers from excessive pride.