Risk management, also known as money management, the concept of money management is to avoid risking more than 1-2% of personal funds on any single trade. This concept may greatly reduce the risk. Risk management helps us to become a successful trader. When you manage your risk properly, you take control of how much of your capital can be lost on a trade Risk management allows you to limit your risk even if the worst-case scenario takes place.
Risk to reward ratio denotes the potential profit in comparison to the amount you may lose in a single trade. For example, when you risk $5 on position to potentially gain $15, the risk to reward ratio is 1:3.