Cropping tool

I can load my original photo and arrive at the point where I can resize my cropping window. THere is no indication reegarding how to proceed from here to actually execute the crop - no 'Go" button, no self-serve help and no AI assitant?? By chance I discovered that using the extend bar in the middle of the side of the photo extends the size of the crop window and that the resize dots on the corner of the photo are used to resize the crop area. How do I get it to actually create a new file in the editor with just the cropped area? Some direction and guidance would be helpful in this area so that folks do not flail around for hours to accomplish a task that should take seconds. WHen I used Express six months ago it was intuitive as to how to accomplish this. Have you changed the interface since then? If so, I would recommend changing it back because the current one appears to be inefficient and not intuitive