BBs are notorious for sometimes being on wickedly tight. You are turning in the right direction. Pedals remove by turning the tool towards the rear, and BBs towards the front of the bike has always worked for me, although it isn't entirely foolproof. I strongly recommend using something to keep the splined tool engaged. Last time I used a big C-clamp. And a friend sitting on the rack. And a 5' pipe threaded over the wrench for extra leverage. Almost had the rear wheel off the ground before the BB broke loose.