Pivoting to the bh corner for 3rd ball attack

Hi coach, i have problems regarding pivoting for 3rd ball attack. right after i serve, i often pivot to the bh corner even when the ball is not yet there, but by doing this, i end up leaving my fh side open, which is where most of my opponents would place the ball, and making me lose the point, on the other hand, if i do not pivot, my opponent would place the ball to my bh corner forcing me to make a poor return and having my opponent attack first.what should i do in order to execute a successful third ball attack?