You don't sit up in a cave and write the Great American Novel and know it is utterly superb, and then throw it page by page into the fire. You just don't do that. You send it out. You have to send it out.
Once I had all the facts in, I found I didn't have the immoral courage to pull the caper. So I wrote it as a story. As a teenager, I didn't have any skills for writing as such, so it came out in 1500 words.
I've always written very tightly, and there's a good reason for that. There's no point in using words that you're not going to apply.
I sent The World Well Lost to one editor who rejected it on sight, and then wrote a letter to every other editor in the field warning them against the story, and urging them to reject it on sight without reading it.
Some major writers have a huge impact, like Ayn Rand, who to my mind is a lousy fiction writer because her writing has no compassion and virtually no humor. She has a philosophical and economical message that she is passing off as fiction, but it really isn't fiction at all.
Create a world in which these things do or do not exist, or in which they are extended in some way. Test reality against this fiction. The reader will recognize the world that you're talking about, even though it may be another one altogether.
You have to study your field and you have to find out how other people do it, and you have to keep working and learning and practicing and ultimately, you would be able to do it.
As far as hypnosis is concerned, I had a very serious problem when I was in my twenties. I encountered a man who later became the president of the American Society of Medical Hypnosis. He couldn't hypnotize me.
I feel angry that I can't be hypnotized. I'm not putting it down, and I'm not saying that it doesn't exist. I have talked to a great many people who are very good at it, but so far nobody has ever been able to hypnotize me.