I always think that I am highly intelligent and a genius. I think of myself as highly superior to others when I’m not and I’m emotionally sensitive, too. I think about things and that causes sleepless nights.. I feel anger, worry etc. I came across delusion of grandeur, too which I relate to. I want this to end.
Learn and practice meditation from this link:
What is meditation? How to practice meditation.
If you continue practicing, all delusions will be removed in the most natural way. The reason is explained in the article.
For any further questions that may arise, you can use the search function in that site. Search function makes accessible a vast amount of topics addressing a vast amount of possible questions.