Are you familiar with the Law of Attraction
(you attract what you focus on), from the The Teachings of Abraham(tm)?
This concept is critical for Empaths, especially if you are trying to "protect yourself" from others...
Here's why: If you focus on feeling "threatened", you'll attract more situations that make you feel this way. No matter how much better you get at protecting yourself, the sheer act of "pushing against what you don't want" attracts it to you!
I know it sounds counter-intuitive at first, but this is why my programs do not focus on building walls between you and other people. Instead, we focus on your "empowerment" in turning it down, on the benefits of being an Empath, on the conscious choice of "turning it on", etc.
I have found this concept to be the biggest contributor to "feeling better" over time. Instead of getting worse and worse, it gets better and better as you focus on empowerment as opposed to threat.