In the 'harry grew up in an orphanage fanfiction', Harry's experience in the orphanage was likely quite tough. He was probably deprived of love and care. The orphanage environment might have been cold and unforgiving. He may have had to fight for the basic necessities like a warm bed or a good meal. There may have been strict rules that he had to abide by, and any small mistake could have led to severe consequences. This kind of upbringing would surely have left a deep mark on his character and his view of the world.