Shaving head to bald - do I go to a barber?

First photo was me one week before AC chemo. Second was my son clipping me to a #2. Third was me after AC finished but before starting the Paclitaxol and fourth was me exactly a year later. Have never tinted or dyed my hair and the brown was natural. I did have two silver "wings" from the temples before, but now it's very silver/grey. The first growth was very curly and my name was then Albert, as in Albert Einstein. It looked as if I'd poked one of my metal knitting needles into a plug socket.