You have hitherto been a spoilt child, and have been used to have your own way a good deal, both in the house and among your playfellows, with whom you were too fond of being a leader; but you have good nature and good sense, and will get the better of this in time. You have now got among other boys who are you equals, or bigger and stronger than yourself, and who have something else to attend to besides humouring your whims and fancies, and you feel this as a repulse or piece of injustice. But the first lesson to learn is that there are other people in the world besides yourself. The more airs of childish self-importance you give yourself, you will only expose yourself to be the more thwarted and laughed at. True equality is the only true morality or true wisdom. Remember always that you are but one among others, and you can hardly mistake your place in society. In your father's house, you might do as you pleased; in the world you will find competitors at every turn. You are not born a king's son, to destroy or dictate to millions; you can only expect to share their fate, or settle your differences amicably with them. You already find it so at school, and I wish you to be reconciled to your situation as soon and with as little pain as you can.

How should one analyze the text above? i know i should judge it in terms of style(tone, formality, sentence structure, etc,etc) and register( roles, word choice, etc,etc). But when I read, I just read. I don't really know how to determine all that
There are at least three registers: formal, ceremonial, and familiar.
One determining factor is the degree of closeness between writer
and reader. The writer and reader of this essay have a close,
personal relationship, similar to the parent and the child.
The essay is in the familiar register.
I'm not sure what to say about the style. It is certainly direct
to the point of being blunt. It is in the style of a parent's
advice and admonishment. The wording also reminds us
of a fortune teller or psychoanalyst, aiming to help a young
person bring some order to his or her life by supplying
objective observations.

to be dupe or victim of of vulgur prejudices paraphase