One good way to start writing poetry is to read all kinds of poetry: not just in order to imitate but to fill up your head with it, to absorb it, to make poetry an essential part of how you view the world.
We tell stories to talk out the trouble in our lives, trouble otherwise so often so unspeakable. It is one of our main ways of making our lives sensible. Trying to live without stories can make us crazy. They help us recognize what we believe to be most valuable in the world, and help us identify what we hold demonic.