Hiya Bonster
Try this: Your dog will be most comfortable having you do anything for her. Put her up on a table, washing machine, anything tall so that you don't have to bend. With Bonnie facing your right, put your left arm under her so that you are "cradling" her in a sense. With your left hand, pick up one paw, clip those claws with the clipper in your right hand. Proceed to the next one. Now, with Bonnie facing your left, cradle with left arm again. Pick up a paw with left hand, and clip with right. If you simply can't get her to do it, she may have to be sedated before getting them clipped.
As I'm sure you probably know, letting the claws grow too much will cause them to curl around and grow into the paw pads. So, she must get them clipped occassionally. I hope this all helps, I know how a scared dog can be when getting groomed.