Find out how to type an ellipsis … on your computer.
Overwriting bores the reader, so don’t do it.
Adjectives are best avoided: add nuance with a better choice of noun or phrase.
Judicious use of adverbs is much more effective than scattering them liberally.
Filter words remove the reader from the narrative, bringing them out of the world you’ve invented and back to the fact that they’re reading a book. Find out what these words are and how to remove them.