I'm sorry your figures for this year upset you
Don't be disappointed in yourself- there's a lot of factors at play here.

About the advertising, I'm just worried about how they will get the emails to people in your area (as already mentioned). Also, how many of your potential clients use emails?

Could you drop of cards/fliers to a senior center or elderly housing building? Could you run a small, limited ad in a local paper occasionally?

You'll come up with the solution that's right for you soon. I know it