“On the way to your goal, you’ll discover that you know more than you know you know.”
Don’t bog down in getting prepared for making a quantum leap in your life. Whatever else you need will come as you go. You could make a career out of laying the groundwork to do something big in real estate. You need to understand that don’t “prepare” for a quantum leap. You make it, and then fine tune your approach. You go for it, instead of forever getting ready so you will be sure to get it right. “Zero defects” is a hostile concept in the pursuit of your goals.