I can understand your concern if your sales have dropped off in the last few months.
I'd like to understand your business a bit more so I can more accurately asses the situation. Can you give me some details of how you've been marketing your business? Let me know you've been advertising, if you conduct offline sales (if so how), and who your target demographic is. Also is there something you were doing differently before that you stopped doing since your sales have dropped off?
All this information will be helpful to better understand how to improve your sales.