BIC FOK brother. BIC FOK.
(Butt In Chair, Fingers On Keyboard
)
The only way to improve with writing is to write. Write until your fingers go numb and then write some more.
Then, pick up a copy of Strunks
Elements of Style and give it a read.
The Right to Write by Julia Cameron is another good book.
As is
Telling Lies for Fun and Profit by Larry Block.
Still, best method is to:
1. Write
2. Edit
3. Edit again
4. Edit again
5. Post to beta readers for feedback
6. Edit again based on their comments.
7. Repeat.