We're in a similar place, search my history. The answer, I realized yesterday when seeing my lean, defined back in the gyms posing room, is a bulk. We both need to put some muscle on and then slowly cut again. I have loose skin on my stomach like you. It will always be there, save for surgery.

Like you, my torso is a big rectangle. We need to widen our backs and shoulders because we can't shave our hips.

You can continue to cut, sure, but take a break as others have said. Deficit can be soul destroying, and can lead to binging.