One way to shield your energy…
Some practice visualization some use crystals. Others take a deep breath or write out their thoughts.
What works best for you?
Here is one way to do it:
When you feel you would like to shield yourself simply visualize that the border of your aura is suddenly hard and stiff, imagine a force field covering you from head to foot. Nothing can get in or out. I recommend that you just mentally select a word or command that instantly triggers your intention of protection. “Shields up” is one suggestion. For me it’s the name of the Reiki Power image, i’d even draw it or visualize it. In my Aurashield I actually have enclosed that any negative energy directed at ME are to be retrieved to the sender as positive energy. This will ease many conflicts. Experiment and see what works for you.