Your face is square!
This means that you probably have a strong jawline with a wide-ish forehead. Your face has good, strong angles.
So, in order to create balance, you should choose frames that are rounder in shape in order to balance these angles. Round or oval frames will soften the angles of your face, creating balance.
Frames to avoid and consider:
Here are Torga's frame recommendations for the square-shaped 'Professional':