Of course your sales forecasts don't work out - you've got the wrong sales model. Customers no longer care how you want to run your business. They only care about what they want to buy, and will keep looking if you don't offer it.
Can you make se what se of sales management? Don't feel bad if it all seems like black magic. Most people think that way. Here's a selection of articles to help you understand what needs to be done to bring the jo into the her and now.