I read The Phantom Tollbooth for the first time when I was eight or nine. It was the first book that actually showed me what it is to have an imagination. I’ve read it tens of times since then, and it still delights me. If you haven’t read it yet, here’s some of what you’re missing.
“‘I never knew words could be so confusing,’ Milo said to Tock as he bent down to scratch the dog’s ear.
‘Only when you use a lot to say a little,’ answered Tock.
Milo thought this was quite the wisest thing he’d heard all day.”
“Well, maybe it is true,” Clevinger conceded unwillingly in a subdued tone. “Maybe a long life does have to be filled with many unpleasant conditions if it’s to seem long. But in that event, who wants one?”
“I do,” Dunbar told him.
“Why?” Clevinger asked.
“What else is there?”
So you might start by writing down every single thing you remember from your first few years in school. Start with kindergarten. Try to get the words and memories down as they occur to you. Don’t worry if what you write is no good, because no one is going to see it.