Create a new layer above all other layers and rename it to double inner shadow, try to name your layers it will be easier to work with. Than merge all layers or just press Ctrl+ Shift + Alt+ E. Than change the layer style blending options, inner shadow. Opacity 50%, Blend Mode- Overlay, Angle 90, use global light. Distance 5, Choke 20, Size 20. If you want, you can play with these settings.That is all by now for a circle and by now if you followed my technique you should have something like this: