I use a lot of pressure when I cut, probably more than I need to BUT it works for me. Also I stand up so I lean directly over the fabric so I can get a lot of pressure on the ruler (just added sandpaper grips to it, who knew how much difference that would make????) and I cut quickly. Again, I've been using a rotary cutter since they originally hit the market and I know what works for me. You may have to get some inexpensive fabric like a flat sheet from a thrift store or whatever, and just practice cutting until you get comfortable.