Dude try some "constant motion" / "HIIT" workouts. This is the ONLY way I've seen massive shredding of my mid section and I've been lifting for over ten years. This mixed in with full body normal weight lifting during the week, and not over eating, will have you looking like a model level fit actually pretty quick (like weeks if you're already pretty good). If you've only ever do set style lifting this workout will obliterate you - https://chloeting.com/program/2019/two-weeks-shred-challenge.html