freewrites can be a challenge. but if you just keep writing, even if it is: I don't know what to write..... over and over again - before you know it, something pops into your mind. It doesn't have anything to do with the prompt, whatever comes up - go for it. If you read @improv freewrites, you get some great examples of freewrites and you can also see how some get inspiration and a few dwaddle along.
And today's prompt: https://steemit.com/freewrite/@mariannewest/day-41-5-minute-freewrite-prompt-the-goat-ate-my