Some fish like Dorries and Tuna etc, sknning beforew filliting is super easy... make your cuts, and just pull from head towards tail...
On Yellowtail I fillet first, then using a long thin and very sharp blade, lie the fillet skin down, and starting from the tail side, cut down into the flesh till you hit the skin, then turn blade flat and while gripping the skin in your left hand at the tail, slide the blade up towards the "head" of the fillet....
A long sharp knife is the trick...
I'm like you mate, I HATE fish skin... only fish that are going onto the braai get the skin left on..