I keep reading, 'Wear a cup'. I'll ask, Do you intend wearing one in the street? If not, I'd go with the advise of Drop Bear, Buka and others pointing 1st to your stance. I don't know what style you are, but personally, I guard my lower gate with my shin using a knee-raise.
However, with all due respect.. you don't seem to be able to 'block' much of anything. I teach 'cover' rather than traditional blocking so I'm not much help there. Sometimes a good practitioner ≠a good teacher. Might be time to change schools?