Photo editing mistakes are common and can be difficult to detect. Fortunately, there are a few key solutions that can help. Firstly, use the undo button to reverse any changes you have made. Secondly, make sure to save backups of your work regularly. Thirdly, use layers to create several versions of the same photo, so you can compare them and make adjustments. Lastly, use filters carefully and sparingly, as too much filtering can ruin the original photo. By following these solutions, you will be able to easily fix any photo editing mistakes you make.