You really do not need to get carried away when trading. Before you start trading, you should have known what you are dealing with, what you expect, what to do incase something goes wrong which is why we have stop loss which usually is always below the point when a price breaks below support and if all this is something you can do pretty effectively while making decisions based on the chart and some news, then you will have no problem with keeping your emotions in check.
You will keep panicking, making decisions blindly and making mistakes if you don't know what to do and which is why you must learn first before you start trading and then believe in yourself to do a great job after that.