After years of writing every day I have realised this: It is the act of getting lost in that first or zero draft and finding your way back, genuinely grappling with the character's predicament, that makes for more interesting, funny, unexpected and authentic stories.
Just write. Every day. Five minutes or five hours. Start a story and keep going till its done. Write 500 or 50,000 words. Don't re-read extensively till you're finished. If you need to outline try to hold off till you're a couple of drafts in. And be okay that most of it will be rubbish that first time round. (You have no objectivity till later). All good pieces of writing were bad pieces of writing at some stage.
Get lost. (In the nicest possible way.)