Well you can develope the visual sensing through Reiki as well.
Don't feel as if you have to practice Chios. Seems to me you're not so much in harmony with it. and that's okay. Not all modalities are for everyone.
There are times when I feel sensations of energy and am not so visual. Other times I am vividly visual and don't feel so much.
What helps me the most is to just relax and not try to see or feel. Just be open to whatever impressions come. I think that has helped me to develope more than anything.