Verloren or Verlaufen?
Both are accepted with "I have lost myself."
What's the difference?
verlaufen is to get lost or like I am lost in the forest - you don' find the way back and/or don't know where you are.
verloren is more for objects like Ich habe meine Schlüssel verloren - I have lost my keys or when somebody died - Ich habe meinen Mann im Krieg verloren - I have lost my husband in the war
Also you can use verloren in a more dramatic expression for yourself or another person to indicate a deep state of despair. Like Ich bin verloren - They will find me, they will kill me