I usually write my stories in microsoft word first and then i put it in wattpad, that way, my story would be finished the day i published it. In this way, people who wants to read my stories may enjoy the feeling of not knowing what will happen next... well except for my first two stories... i didn't really continue those because i haven't think about the climax and how to end it. 
I'm just sharing my imagination to you, that's all.