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.

What she did have were Bertie Bott's Every Flavor Beans, Drooble's Best Blowing Gum, Chocolate Frogs, Pumpkin Pasties, Cauldron Cakes, Licorice Wands, and a number of other strange things Harry had never seen in his life.

Harry found the [tea]... seemed to burn away a little of the fear fluttering in his chest.

One can never have enough socks

And what in the name of Merlin’s most baggy Y Fronts was that about?

No man or woman alive, magical or not, has ever escaped some form of injury, whether physical, mental, or emotional. To hurt is as human as to breathe.

Said Hufflepuff, "I'll teach the lot, And treat them just the same.