WiseOakReiki
It looks like you are doing a lot of mass marketing with your focus on money-paying customers in general, when what you really need is more of a one-on-one "special" kind of focus.
Something like LeFou suggests here sounds like something you need more of. Reading for free (and perhaps handing out business cards) is one way to "exchange" for better advertising without coughing up the money for advertising. Demonstrating to generate word-of-mouth is the best advertisement you can get. Focus on building those one-on-one relationships; everything else you're doing is icing on the cake.
Thank you for the statement that the one-on-one focus is what can get those paying customers rather than mass marketing.