Visualise yourself in a colourful shield wich is protecting you against
negative surroundings, one of the most used ways to  protect the aura but also the mind. Next to crystals and what some people do is asking angels.

You can imagine all kind of colours like pink for love, white for extra protection, and green for fresh energy. The only thing you have to do is to stand or sit down and close your eyes. From the cosmos comes the colour you like to have to protect you surrounding your aura from to toe.
What you can do next to make sure it is working better is to visualise flowers coming up the
colour field like you are protected by the colour itself and the flowers you like. I prefer
roses not only I like roses so much but also to let only love through wit the pink colour it is a very
goog combination and worth a try.