I am sorry that you are hurting sidmoumane It is really difficult going through the healing process.
I know that inner voice all too well. My self-worth was connected to my pwBPD's actions. I looked to him to validate my self-worth and all I seemed to get back was confusion. It was inner hell for me. I realized the only way I could fix this was to fix me. I started thinking what makes me feel good about myself? What makes me happy? Then I started getting down to my own core issues and started depersonalizing his behavior.
I think it is great that you started rebuilding your life by going back to school and qualifying to teach.
That is a huge accomplishment
Have you read the lessons on the right side? That is a great way to start working on yourself. What can you see yourself working on first?