@Lay_Star54 I think that you have to change the cover of your diary story, do something girly or with emojis, something that will bring attention and readers! :)
and for the topics, I think that you have to write something that is really important for you, that means a lot for you. You can write everything, 'cause you're not going to be juged or something! write whatever you want, that's your choice! :)