Welcome to the forum Lbenoit35. Not a problem, none of us knew what we were doing when we started. You will learn fast if you apply yourself to reading and researching and you set up your business and register for plenty of companies. Starting your own mystery shopping business is very time-intensive initially, because the more reading here on the forum (and it's all free!) the more you will understand about the business. The more time you spend signing up with companies, the more job opportunities will potentially be available to you. Don't get discouraged. Think of the time as an investment in your business.
You are in the right area of the forum. The best place to start is by reading all the posts above this one in the New Mystery Shopper area. Then read as much of the rest of the forum as you can. The more you read, the more you learn.
Good luck and happy shopping.