I think I experienced a lot when I was writing my graduation thesis. During that time, I collected some information everywhere, and then I had to write according to my own ideas, because our paper index was really big, and almost everyone had to write a book. Anyone without a notebook will often face this situation. At that time, writing graduation thesis was really a state of collapse, because graduation thesis was often written many times, and it had to be written in the words he thought of.