"I read my book."
Translation:Jag läser min bok.
Take it as a habit to learn the gender of the word every time you learn a new noun. There aren’t any rules which gender a word belongs to.
Is it possible to request the app to add a short written tutorial about possessive pronouns? Explaining how they work? I have tried Japanese and some of the classes have this hint.
Those short tutorials (Tips and Notes) are not yet available for the Swedish course on the app, although they are available for some other languages. You can find Tips and Notes for the skill on Possessive Pronouns if you log in on the web version of the program, though.