Read as much as you possibly can. Nothing will help you as much as reading and you'll go through a phase where you will imitate your favorite writers and that's fine because that's a learning experience too.
J. K. RowlingHagrid, look what I’ve got for relatives!” Harry said furiously. “Look at the Dursleys!” “An excellent point,” said Professor Dumbledore. “My own brother, Aberforth, was prosecuted for practicing inappropriate charms on a goat. It was all over the papers, but did Aberforth hide? No, he did not! He held his head high and went about his business as usual! Of course, I’m not entirely sure he can read, so that may not have been bravery. . . .
J. K. Rowling