Thing is, you already have it, and it's no secret, nor is it magic.
It's called persistence. Includes a sidecar of patience.
Yes, there are a few writers who've sold train cars full of books and now they'll teach you how — for the low low price of whatever it is they're charging.
Perky plucky Catherine Ryan Howard made this comment at her blog:
Winning the lottery would eliminate the need for a job. Is buying lottery tickets a reasonable substitute for showing up for work every day?
I'm with Catherine: trying to duplicate the success of another person is like copying all the elements of Stairway to Heaven and assuming you'll become a rock icon, if you just do it right.
There are exceptions, of course, though they're not really exceptions. Tim Grahl hasn't sold millions of books. He worked his head to the bone for a year and sold 10,000 copies of his book Your First 1000 Copies and now he teaches others how to do it. What he teaches, though, isn't a magic secret formula. It is the clear and simple process he used himself, which he's already outlined in his book which you can buy for a few bucks. His online classes expand on the concepts and include specific wording and tools, but the essence of what he did is available free at his blog.
If someone offers to sell you magic beans, don't assume they'll grow a magical beanstalk and save the family farm. Someone teaching you a more efficient method of plowing fields and sowing seed? Worth checking into.
No farmer plants seeds today and goes out to harvest tomorrow. Or next week. Or even next month. Okay, maybe next month for radishes, baby onions and certain greens. But most gardens really start to produce after months of care.
Keep planting seeds, but remember to give them time to grow.