the word impossible itself says "I'mpossible" - scholarship essay thoughts?

Hi guys,I'm writing an essay for scholarship and the topic is "Write an essay in English of not more than 300 words about your most favourite saying and explain why you like it"

I've chosen Andrey Herpun's quote "Nothing is impossible,the word impossible itself says "I'mpossible" ".My native language is not English so I'ill have difficulties writing it.

I have here some thoughts about the structure of my essay(the body),please give me more ideas and details because I'm stuck !!
1. Define possible and impossible
2.The word impossible in my life
3.How the word impossible turns out to be "I'mpossible"
4.How this scholarship would help me make from impossible things to possible things.

...(I haven't got any detail for these paragraphs so if you have any new idea that may help me with my essay ,just let me a comment !

Thanks in advance !

Talk about something that seemed impossible, at first, but possible after working hard at it.
It should be something you did, or something someone close to you did.
1) Your misconception of the impossible--Describe what you thought initially.
2) Your work that prepared you to succeed--Include advice or help you were given.
3) Document your success.

It sounds like a 3-paragraph essay.

Good luck.