Its like weight loss.....
Millions and millions of people are overweight. They buy billions of dollars in products to help them lose weight. None of those products work, because people aren't willing to put in the hard work, hours, and sacrifice it takes to have a great body. They want something easy. Easy doesn't exist. There is no magic, only talent, hard work, dedication, and perseverance.
In art, everyone wants to sell their artwork. They want the quick, and easy way to sell their work and make a buck. There are many tips, and tricks, and stories of how this or that works and people make a lot of money, but the truth is the only way to make a good deal of money in the art work is with talent, hard work, dedication, and perseverance. I can tell people what sometimes works for me, and what I am doing, but ultimately you are not me, you have a different set of strengths, and what will work best for you will probably be different. The key is to work hard at it every day....really hard. Try some things, spend some money and time, find what works, and what doesn't.
Facebook is a boon for me. I've found ways over time and effort to build an audience that likes my work there. It didn't exist magically, I built it. Other people say Facebook is a waste of time.
We are both right....which answer is right for you?