Sounds like you are so afraid of cutting yourself with the rotary cutter that you aren't pushing down hard enough. I get that...sliced myself before!!! I've tried several other ruler holders that get my hand off the ruler, but found them to be uncomfortable and didn't really work for me. I just saw this in an online magazine this morning and I'm going to save up for it - looks awesome...keeping fingers away from blades AND keeps your ruler from slipping. Check it out:
http://www.keepquilting.com.au/index...od&productId=2
As many others have mentioned, a new blade is a good idea too!!!
Not affiliated, just like the way it looks like it works in the video!!