weird face shape

I have a weird face shape that doesn't seem to fit any of the classic patterns. It is widest at the cheekbones (6"), like a diamond. But my jaw line (5") is wider than my forehead (4" at widest and tapers to rapidly up), so that makes it seem like a pear. I have fine, thick, straight hair. Traditionally, permed hair with layers and bangs, done with hot rollers, has looked best on me. But I am trying to stay away from perms now. How do I find a good hair style since I can't tell what my face shape is?

Sallyo,

opposed to the perm, volume can be achieved with layering - more specifically slicing. The shorter strands near the root will create volume, especially in densely implanted fine hair. Your face shape may be a bit uncommon (in the guidebooks that is) but what is lacking in your description is the length (forehead/nose/chin area). They have an importance as big as the width. Anyway, based upon the width: you need volume on top, but not too much, just to make the "ideal" of the oval. Then bangs are only a possibility if your nose etc can take it. Otherwise it may not be ideal (shortens the area that needs to be enwidth! Is this English??? ).
The cheeckbones may be optically reduced by choosing a style that goes towards the face. This could be done with a shorter style too, but could look better with a medium or long length (all depends on the measurements in the length of your face and your features eg the nose shape, the cheeck, jaws, etc.). Thus the length depends on your preference, the styling towards the face will look better with layers (hope you like them ).

Enjoy your hair and let it help you make the most of you (instead of the other way round).