You do not have to worry, the market does have a fluctuating nature. So naturally when the market suddenly dropped dramatically or increased significantly. The market will not let this situation last long, the market goes on and will soon arrive at a high place to raise its price. Be patient to wait, while market prices are down, you can use this situation to spend coins on the market. That will add to your profits in the market when the price will skyrocket and will help you to more quickly maximize your profits.