To learn requires a sense of humility. We must admit that there are people out there who know our field much more deeply than we do. Their superiority is not a function of natural talent or privilege but rather of time and experience.
Lesson from Surah Al Khaf, A rejection, A loss or delay isn’t always a deprivation, It is indeed Allah's divine help to protect you, Give you better and reward you.
Get your fucking confidence back. Without it, intelligence and skill mean nothing. Confidence isn’t positive thinking. It’s built by doing hard things without quitting.