If you don’t know in which direction to turn, it means you haven’t drawn your crossing neatly enough.
If you draw your crossing as shown in green :-), you will know in which direction your thread is heading. If you draw your crossing as shown in red, you will hesitate and have thread that tend to get loose ends or that try to go through walls. remember that the crossings that you draw at the first stage are the only ones! Afterwards, the thread is not allowed to cross the (...)