Listen how to take some basic precaution for creating Aura shield.
When you are used to the programming you can extend the duration up to days, weeks and months. Normally twelve hours will be enough for a working day. Through time you will be better in programming and your shield will be stronger and sustainable.
An absolute NO-GO (for not working properly) is:
Don’t be afraid or doubt. When you create your shield you must be totally confident that it exists and that it will be impenetrable and that it will protect you. Any doubt or fear will weaken your shield and will make it penetrable.
Don’t be angry, stay calm. The next moment when you are angry the shield will be dissolved. All negative emotions from yourself will destroy your shield, if it is penetrable. When impenetrable from inside out your negative emotions will intoxicate you psychological.
If you don’t want to conduct the negative energies to the earth, you can conduct them to the universe to be transmuted. Or you can paint the outer side of your shield with a pink-golden light. Then invoke your intention that all negative energy and thoughts which are pointed to yourself will be transmuted into calmness, understanding and peace.