Before anything else, welcome to the awesome BabyPips community! We’re happy to have you.
To answer your question, yes, you can edit a post after creating it.
Simply click on the pencil icon beside the link icon to edit the content of the post you’ve created.
If you ever want to change or edit the topic/ title of the post, you can click on the pencil icon beside the topic.
Hope this helps! Feel free to shoot us a PM or reply to this post should you have any more questions.
See you around!