I completely agree with Shael, I used to be under heavy attacks at beginning, and didn't know what to do... As soon as I started building an aura of protection, and did regular aura cleaning, it has become better and better.
Although I firstly had to burn myself to learn a lesson. One night I went to sleep unprotected. On the astral, I received a severe attack in form of spear that stabbed me righ into stomach area, it hurt so much that I literally jumped from my bed.
Do not let yourself exposed to the enemy, keep your aura strong and protected.
-Larissa