It's very hard at first but it definately gets easier.

When I started learning I decided to try using both hands from day 1 onwards, it's surprising how fast you pick it up actually. I found I tended to cut myself less with my left hand in the early days, I think because I was using less pressure and was always being more careful with that hand.

Remember the shaving action is from the arm and wrist, not from the fingers. The fingers just hold the razor and don't really manipulate it as such. So it's nowhere near as hard as say learning to write left handed.

Just give it time and be gentle, you will start to get the hang of it.