Originally Posted by
alan s
My bike only has one fork, so I don't specify that it's the front fork.

You don't have a fork in the middle as well? Oh well... (fair call)
Disc brakes do require a little getting used to, but once you learn how to adjust, it's no big deal. At first, I always had the LBS adjust because I didn't want to mess with brakes, mostly out of fear of messing something up. I watched and learned how to maintain, and asked a lot of questions.
Find someone who knows how to adjust, spend time learning, and your confidence will grow. There is nothing too complicated about disc brakes.
At first I was afraid of adjusting my brakes. Then one day I took both wheels off to put the bike in the back of the car (in the vain hope it would take up less space) and when I put the back wheel on the rear brake rubbed. So I released the QR lever, reseated the wheel and tried again... no joy. The following morning I was setting off to ride 150-odd miles over a couple of days so having my brakes rubbing wasn't an option and we were leaving early enough I didn't have time to have a bike shop look at it. So I took an allen key to the rear brake block and adjusted its position very slightly, retightened it, and the problem went away.