First: don't think.
Second: don't think.
Third: concentrate on your board. With good speed, slowly put your kite at twelve, depowered. Ignore your kite when at 12. When pointing extremely sharp into the wind, push your board through the tack. If it's not completely through, push it around with your new front foot. Only when the board is around, put your new back leg (fully) into the board.
It helps to pull on the bar, it'll give you some balance, and makes you weigh less....though it can also pull you of balance. Remember, the kite stays ignored, meaning depowered and around twelve.
When the board is around, dive the kite.
To rehash: don't think. Get the board around.
I got my tacks on one side close to hundred percent, in smooth water, in waves, in chop...the other side...hopeless! Still thinking too much, I guess