How do you do the last bit??? You wont fit there with the hammer becasue of the wall

No way in the world can you fit by the short or the long edge by tapping the tongue into the groove, you'd destroy a board even using the softest of wood blocks. The only way you can get them to lock is inserting fully locked lengths (by the short edge) into the last laid boards, holding them at 45 degrees, then pushing/tapping into position. Not a product I'd be recommending to anybody. I've had better results with cheaper laminates.

Bloody shit it don't work as easy as that......