The next stage is to explore your creative imagination further and begin exploring language, imagery and other techniques of creative writing. For this, there are some exercises you can try.
The first is called Discover Your Continent. Imagine a door in your home, or library or walled garden. Anywhere. Close your eyes and visualise the door. Try writing a description of it. Then imagine going through the door and visualise the first three things you see. The colours, the smells, any noises in the distance. Write about those. Then imagine going further into this environment and describe what else is there and how it feels. Try to complete 10 sentences or, in the case of a poem, 10 lines. Then describe meeting someone, maybe someone you know. What do they say? What do you say? Devote another 10 sentences or lines to this. Then put away for a few days, maybe longer, and go back with a fresh pair of eyes. Hopefully, you will be able to revise this raw material into a story or poem.
Another exercise is one I call Grow Your Own. Go to a shelf full of books, fiction or poetry, and choose a volume at random. Then just as randomly open the book and put your finger down on a page. Your finger should have landed on a word. Write that word down, along with the three words preceding it and the three following. You then have a seven word phrase. Using this as your opening phrase, continue writing on for the next five minutes. Don’t stop and don’t think, just keep writing. When finished, read through it forwards and then backwards, word for word. Underline any phrase or phrases that stand out to you. The phrase should make a kind of sense, or have inner sense. Now write something containing the phrase or phrases and, hopefully, a fuller piece will grow out of them.
A more disciplined exercise is writing a piece of Flash Fiction. The popular definition of flash fiction is a piece of prose that does not exceed 1000 words. This format is currently very popular on internet writing sites and examples can be seen on such locations. They tend to take the form of anecdotes or recorded conversation. I would suggest starting with 50 words or less. Try writing about the area you live within that word count; words and short phrases that sum up the area to you. For example, using this approach, I tried a short poem about Blackpool which goes like this:
Since the first hamlet
Earlier than that
Black & Pool
Dubh & Linn
In Nordic Irish
Dubh Linn. Sound familiar?
You will often amaze yourself how less can work out as more.