Before picking up a weapon in any martial art it's important that you have a really good concept of stepping, technique, body posture, breathing, focus and control. In our club only black belts are allowed to start practicing for this reason alone.
Think of the weapon as an extension of your arm. Instead of the focus being in your fist or foot, the focus is shifted to the end of the weapon. Keep the point of the sword as still as possible by breathing to the end of your technique. Breathing control is the key.
With excellent breathing, movement and technique you can learn how to perfect any weapon. Keep practising.