As with any business, principles of risk control must be applied to prevent large losses. This is known as your trading system, the rules, the aim, the considerations and the application of how you are going to achieve your trading goals.
There is an endless array of information available for technical analysis. You should be clear on what your trading system is striving to achieve then use these tools to fine tune your target trades. I find I am constantly challenging the way I do things and searching for new ways to juggle and analyze the results.