First thing you need to do is open your photo on photoshop, right click on layer and duplicate the photo twice by Right Click-> Duplicate -> OK.
Once this is done turn off your background layer, and now you are ready to go into the main retouching process.

First we will apply a filter to the first layer, that’s Filter -> Distort -> Diffuse Glow , which will bring up the Diffuse Glow menu as shown below.

Next you want to move the graininess slider to 0, the glow between 4 and 7 and finally the clear slider between 7 and 10 to avoid wash-out colours hit ok, and you are done with your first layer.

Moving on to your second layer, Filter->Blur->Gaussian Blur and set it to 5.5 and move back to your top layer.

Select the top layer and go to blending mode to overlay and there you go your new picture glamourized with soft focus and softer light in less that 5mins!