In all forms of trading we should need to always keep in mind the basic of trading. And that is what exactly what you are doing but you can also manipulate how you will manage your specific trading such as setting a price goal so whenever you hit that price that is the time you will decide whether by buy or sell. Because in reality you can always decide on buying or selling Bitcoin it just a matter of gap and terms in your decision making. And setting price goal can help you to manage it even more in a basis Mathews so you could earn more.