Is there a way to change your hairstyle if you're not satisfied with your current one?

or do I have to do the obvious and start all over again from scratch... because It gets boring running around with a Mohawk and a big beard...

nope your stuck with what you chose.. though they did say it was something to think about for part of a dlc.

Am I in the Fallout forums?

No. The people of Tamriel were cursed by the Divines in return for being created, to having the same hairstyle all their life.

I have not come across a pair of scissors yet, but maybe those embalming tools could cut hair? lol

I still find it very odd that they left this out from Fallout 3, the feature made sense. Well plastic surgery not so much, but a different haircut sure.

Hopefully a mod will be able to bring it back.

It would be nice if they did

The art of Hair-Smithing was banned in the Empire as per the White-Gold Concordant that ended the Great War. While there remains legends of an old renegade hair smith living in the Jerall Mountains, the Thalmor plot to weaken the Enpire through limiting their hairstyles goes unhinged...