Continue writing the next sentence.

How to write a fantasy novel set in another world 
Create a world, it may be different, or similar to our world, but try to make it original. 
Try not to borrow ideas from other authors, such as if you have a forest, try to not make the name, gloomwood. Or a range of mountains, the foggy mountains.
Words like " gloom " and " foggy " have been used and stretched over too many novels. Try something like " the impassable mountains ".