Creativity is just connecting things. When you ask creative people how they did something, they feel a little guilty because they didn’t really do it, they just saw something. It seemed obvious to them after a while. That’s because they were able to connect experiences they’ve had and synthesize new things.? — Steve Jobs?
Here are a few links to help you get rolling. Write Every Day for 10 Days Writing prompts, pretty pictures, directly into your email...
It’s more than grammar and word choice.
Just because it's practice, doesn't mean it's "allowed" to be terrible. At least not intentionally.