You're not trying to cut on a carpeted floor, are you? You need a firm surface like a table or countertop and a cutting mat and a rotary cutting ruler. If you have strength problems with your hands, you should definitely check out the June Taylor Shape Cut rulers.

You did not mention a ruler. You can get a well marked ruler & you should not have to mark your fabric. Try Easy Rule II by Sharon Hultgren. It is a 23" x6 1/2. there is also one by Creative grids that is a non slip ruler.You can go to www.creativegridsusa.com and see the different sizes.This ruler has 3/4- 1/2- 1/4 marking along with the other sizes. I like mine very much,just got it last week.

This would be my question also, especially why you are marking fabric for strips?.....and are you using a cutting mat? Many of the other members mentioned great sites to help you along...if you still are having problems come back and ask more so we can try our best to help you out. :-D

If you have all the right equipment, rulers, mats, quilting buddy, etc., the next best thing to do is starch your fabrics before cutting, PRESS your seams NOT iron. If you let us know what you're having problems with or can show us pictures, I'm sure you'll get lots of tips to help you. Please don't be discouraged, there is skill definitely needed.