I,too, am left handed and I've had to adapt for most things.
I use mostly right handed scissors. The Fiskars (gray and black ones with the orange lock) work great for me. 'pieces' mentioned that they have no holes for fingers but those are the shorter, sharper blade ones. There is also the longer blade ones that don't have such sharp tips and do have a large area (hole if you will) for your 4 fingers rather than your thumb. For short scissors, I like Cutter Bee-yellow with sharp tips and a removable cover or Gingher 5 1/2" ones. Both seem to be very easy for me to use. I use a rotary cutter mostly and have switched the blade to the right side, when holding in my left hand. I notice there is a new one out there that can be used by both hands without changing blade positions. But they are expensive so I'm happy just using the standard cutters.