Yes, you can delete your story on imo beta. Here's how you can do it:
1. Open the imo beta app on your device.
2. Go to the "My Story" at the top of the app.
3. Find the story that you want to delete.
4. Tap on the trash can icon in your story.
Once you've completed these steps, your story will be deleted from imo beta. Keep in mind that once you delete a story, it cannot be recovered, so make sure you want to remove it before confirming the deletion.