I'm still suffering, a bit, from blocking shots left (as a leftie), even with short irons. Strangely enough, I've been driving very straight. I was playing, today, and one of my partners mentioned that I'm getting ahead of it, a bit, even with short pitches

Does anyone know how this happens and, more importantly, how to correct it? I'm sure there must be a simple drill to eradicate this (hopefully!!!)

Thanks