who is the young girl who feels trapped in the rime of the ancient marnier?

Are you sure there is a young girl? Do you know where in the poem she is?

The only "female" alluded to in this poem is the ship; she is described in detail, but as far as "trapped," you've lost me.

A weary time passed; the sailors became so parched, their mouths so dry, that they were unable to speak. But one day, gazing westward, the Mariner saw a tiny speck on the horizon. It resolved into a ship, moving toward them. Too dry-mouthed to speak out and inform the other sailors, the Mariner bit down on his arm; sucking the blood, he was able to moisten his tongue enough to cry out, “A sail! a sail!” The sailors smiled, believing they were saved. But as the ship neared, they saw that it was a ghostly, skeletal hull of a ship and that its crew included two figures: Death and the Night-mare Life-in-Death, who takes the form of a pale woman with golden locks and red lips, and “thicks man’s blood with cold.” Death and Life-in-Death began to throw dice, and the woman won, whereupon she whistled three times, causing the sun to sink to the horizon, the stars to instantly emerge. As the moon rose, chased by a single star, the sailors dropped dead one by one—all except the Mariner, whom each sailor cursed “with his eye” before dying. The souls of the dead men leapt from their bodies and rushed by the Mariner.

The analysis above refers to the passage from Part 3 below;

The western wave was all a-flame,

The day was well nigh done!

Almost upon the western wave

Rested the broad bright sun;

When that strange shape drove suddenly

Betwixt us and the sun.

And straight the sun was flecked with bars,

(Heaven's Mother send us grace!)

As if through a dungeon-grate he peered

With broad and burning face.

Alas! (thought I, and my heart beat loud)

How fast she nears and nears!

Are those her sails that glance in the sun,

Like restless gossameres?

Are those her ribs through which the sun

Did peer, as through a grate?

And is that Woman all her crew?

Is that a Death? and are there two?

Is Death that Woman's mate?

Her lips were red, her looks were free,

Her locks were yellow as gold:

Her skin was as white as leprosy,

The Nightmare Life-in-Death was she,

Who thicks man's blood with cold.

The naked hulk alongside came,

And the twain were casting dice;

`The game is done! I've won! I've won!'

Quoth she, and whistles thrice.

This is the only reference to a woman in the poem, outside of the bride at the wedding. At first he believes he see that sails of her ship, but you can see that he was wrong.

there are actually two angels at like the end..but i still dont know which is the right answer

Ok................. I'm going to go back. I'll let you know what I find. You have definitely intrigued me! :-D