why am I not making $20k a month?

You can do that but it takes investment and delivery of solid product, I have done that before and can say if you land the top clients you can charge 1000's for quality reporting if they deliver insight which is of value.

Take a look at tools like sysomos, I know for a fact companies pay serious money for a well executed report on brand / sentiment.

You can achieve goals like this, just know what you want, plan it then do it.