Another tip I bring to you guys.
In DP, you all try to "solve" this, which is understandable, but know this: VAST majority of people with DP are INTROVERTED intuitives (in Myers Briggs IN). Introverted. Trauma, a dysfunctional family system made this introversion go TOO FAR in you.
What am I trying to say? How this can be an advice / tip again?
What I mean is, that the core of your problem is NOT something you can find "inside". The core problem is, that BECAUSE of the VERY SUBOPTIMUM care you received from your family, you simply do not sense, realize, understand, grasp, that YOU are a WORTHY human being. I know that when you have DP and read this, you don't really even get what the hell I mean. (Note: you don't need to have two "bad parents" in order to receive bad parenting. Lot of well meaning parents do very harmful things to a child. My mother for example is a very sweet woman (ESFJ, Fe dom, full of empathy and love), but she was running away from home, from one terrible marriage to another.)
Meditate on that thought again and again (don't obsess) for days, weeks, until you get what I mean.
Probably all your life, you just been appreciated for what you DO or ACHIEVE, and not just for the fact that you are a SON OF GOD (no religious meaning here! just emotionally loaded), a WORTHY, UNIQUE HUMAN, who brings COLOR to this life otherwise would not exist!
If you GRASP this, you will be able to face ANY anxious thought, life situation, life question, ANYTHING with a calm, non-anxious mind, which means a CLEAR MIND.
YOU. ARE. OF. WORTH. AS. YOU. ARE. Right now, there in front of the screen, reading. YOU.
I don't care which exam you failed, I don't care how you get fired from what job, I don't care how you acted drunk, even if you physically hurt someone (which I do not promote). You are worthy.