There is a block to action called the paralysis of analysis.
You will never have all the information.
If you were to have all the information it would be too late to act.
If you have a dream and have shaped the dream into a goal, act.
Take that first step, and another, then another.
Once you have the basics - you will learn more by doing than by studying; act, then study.
If you want to start a business, don't wait till you have a diploma. Start the business today, start to learn how to grow the business tomorrow. You can get a degree later, if you still want one.
Life won't wait - start now.