Answer
The author was clearly using sarcasm. i know this cause in the question it says only and compares it to a different planet, and we know planets are not a mile close
Explanation:
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<em>The evidence of the text that best supports the theme about the importance to have independece is this: “I must stand quite alone, if I am to understand myself and everything about me.”</em>
<em>Because it states two important facts about it, once is that being independent will let her know herself better and understand her feelings and emotions to make right decisions in life. The other fact is that the independence will give her a better idea of what she has so far.</em>