You will have to Attenuate your signals somehow. Try talking further away from the Mic. An inch or two on your end may make a big difference on her end. (No comments, Amy)
Have your CB's been "Tuned & Peaked"? If so, put them back stock. A lot of the Mods just overdrive the radio. If not, maybe try shorter & less efficient antennas.
You & Amy are both licensed Hams, use 2M radios on direct and low power. You could also get some of the cheap FRS or GMRS radios.