When you use Trailing Stop you are protecting your account from the unknown end result for any trade , some will argue that  Trailing Stop is useless as it may take you out very early but as we always say .. Proper application for any trading technique or tool is what you need to succeed not the tool it self .. 

In this technique we will use the ATR Indicator to estimate our stop loss which will not exceed 1 % from our capital in order to have a good Risk management ..

Note : part of this video will have a poor quality