Hardest part for me is research. I mean, I know my story is fictions but I still want to make it as real as possible. Sometimes, what you need can be researched easily. But sometimes, even big bro google can't help you much.
It's funny that when you write, then suddenly you have to do research on CT scan. How the machine works and what is the side effect etc etc... Of course, I only do basic on that. Thus why, disclaimers always helps! Don't sue me for any misinformation on medical stuff! I'm not going to do in-depth research on CT scan when its not even that important in my story.