Steemit can be very daunting for newbies, we've all been there!! Don't worry, it's better to make mistakes earlier in your journey than later to be honest.
Perhaps you can edit your post and write at the end of the title or at the beginning of the post something like Duplicate post by error.
If you have any further questions, or need anything, don't hestitate to drop me a question
Thanks for your advice. I've edited my post to explain my error. At least its in the humor section as well. Also thanks for offering to help me with my questions. I might be needing a lot of help.
Anytime !!
Love the image !