I am very, very new to this DIY thing, so be gentle.
A bedroom curtain rod popped out of this concrete wall with a surface material which I don't recognize. The rod holds fairly heavy blackout curtains.
The rod is fine, the wall is not. At the very least I would like to fill/patch these holes. There isn't much room so ideally I would also like to reuse the area to drill in and reinstall the rod with new anchors and screws. I have a hammer drill, anchors, and screws.
Finally, optionally, I'd like to fix that edge but I have no idea what that material is on the surface.
The photo is of the right side, the left looks the same. Happy to provide any additional details.
Thank you all so much in advance.