During my holiday, I went to visit a friend I hadn't seen since high school. After we had talked for about an hour, I suddenly heard myself thinking, "She is way ahead of me in confidence and contentment." At the same time, a distinct area in the back of my brain began radiating despair. The feeling was vivid and localised to the one area of my brain. I felt awkward, wondering if my sudden mood was obvious to everyone. At the least I must have seemed suddenly tired or deflated.
This experience was painful, but it was also a success in self-awareness. I had found a part of my brain which needs some healing. Was it an emotional scar, or perhaps an entity attached there? I don't know.
More than a week later, I haven't resolved the vibe. I can re-visit it by focussing on the back of my head. Re-visiting an astral wound and studying the way it feels is, in my opinion, an important step towards letting it go. First you map how it feels, then it starts to separate from your background thoughts, becomes arbitrary, and eventually falls away. It's a peaceful process of witnessing yourself, being centred and believing that there's a better way to feel. If you give in to the idea that the pain is fundamentally justified by the circumstances in your life, it will be a lot harder to free yourself.