Use real life experiences and only write what you actually know about. Set your stories and characters from places and people you know looking for some unusal aspects about both that would make a story interesting.
Write without correction and editing until your story is finished and then walk away from it for 24- 48 hours. Then go back and start the editing process by running a spell check, correcting the grammar and ensuring your story has a smooth flow. Leave the story one more time... do a final check and if you're happy with the result, publish it.
Attempting correction and edititing while you're writing obstructs your train of thought and creativity. In writing stories you have the luxury of time, use it to your advantage.
Zorro