When you write, using the method of writing freely – called a freewrite – you can lose control with no worries about consequences. Writing in this style is for your personal enjoyment or to enhance your writing. This isn’t your final piece to be published. No one else has to read your writing, unless you invite them to.
When you freewrite, don’t think and don’t plan what you will write next. Just go with the moment’s energy. If you use a prompt that draws from your childhood, you will have endless material to write about.