Well, what do 당신 want to write about? Everyone has different opinions, some like fanfictions about a 인기 anime, some like 글쓰기 a romance with two animals.
I usally get out of ot 의해 글쓰기 down what I think. Really. Like very little thing that pops into my head. Then out of the blue I get an idea for a story! Hope it helps :)