Don't you know what's trading? You sell in low price and sell in high price (in order to profit). So what's risk here? If you buy in low (as you see it's low) but price falls, your buy is meant to be high instead of low. Then you sell if you don't have nerves to hold and you get loss. It repeats and repeats. That's risk. There is no way to manage it by reading suggests from here.