I just saw this and I'm wondering if you know how to properly submit a draft to a publication? Before you publish, click on the three dots at the top of your story/poem. You'll see "Add to publication". Choose the publication, click on 'select' and follow the steps.
This sends it to the "Drafts" for the publication, and gives the pub owner the option to accept it, edit it, publish, or schedule it etc.
If you already knew this, please forgive my incorrect assumption. Most pubs do not want previously published work so my intention is only to be helpful.