They say razors should only be used on the balls & the face.
Its pretty easy. just do it in the shower with some water running on it and shaving cream. i manage to shave it while the balls are loose and tight.
above the dick is annoying but shaving downwards seems to work, if ur careful enough you can try to shave upwards but that can cut.
Above the balls (around the base of the dick) i go from the side towards the middle (underside of the dick)
Under the balls just lift up the sack and shave upwards, or lift & shave side to the middle
see how you go. use a good razor. not a disposable.