I am abedextious so I tend to naturally cut with both hands. Some people never get into it. I am not in my sewing room but here is my suggestion. Especially if you are using the triangle ruler. I know we usually start on the left of the fabric and go right. Try starting at the right and going left. I know some would slap my fingers as you are supposed to cover the piece you are cutting. But skip it and move on to the next triangle. When I get a chance I will take more pictures of what I mean