I love reading this! You reminder me of myself about 3 years ago. I am now 26, so you can easily do that math. First of all, I want to commend you for taking action right now at such an early point in your life. Most people think about doing something great all their lives, and never step out due to fear. Since you are dealing with fear of success, I highly recommend reading T. Harv Ecker's book "The Millionaire Mind." This will change your life.
First of all, you have had plenty of education. If you have been seriously studying for over a year, you probably know more than you need to in order to get started. Believe in yourself! Remember this quote. "Ready, fire, aim!" You'll figure things out as you go. It may not be comfortable, but you are going to learn. Those who laugh are jealous. Treat people with respect and honestly do the best you can. When wholesaling, use the proper contingencies and never try to rip anyone off, and it's essentially risk free. You will learn far more than you ever do reading, once you take action.
So get out there! Hit the pavement, join a good real estate investing group, keep learning, and know you are going to make mistakes. That's the beauty, when you learn from everything. Your age doesn't matter. Your belief does. Speak with confidence even when you don't know what the heck you are doing. People will respect you when you speak and act as if you are already successful. To be a success, it starts in your mind. Good luck!