Basic questions about first training mission

[Hanzu]

I have hard time completing this simple first training mission in
SINGLE PLAYER->TRAINING->Introduction to Flight

Problems:
The flight instructor gives bad advices. Tells me to turn left then a circle I'm supposed to fly through is much closer to the right side and vice versa. Sometimes he gives positive feedback but they come with such a delay that you never know what you did ok and what not.

Nothing happens when I fly through the colored circle. Are they supposed to vanish like in TRAINING->Landing mission?

What part of the circle I should aim for. Since the flight instructor never accepts my performance. No matter how centered I try to be in the circle.

I have completed the harder trainings after this. So I can't be complete failure. So some tips please or I am forced to thing this has stopped working in latest patch.

I have tried both Easy and Realistic difficulty.