Beep test reflection

We did a beep test to find out how fast we are then at the end of the term then we will do it again and see if we did better then the first time.I got lv5 lap 2, I stop because i got a stitch but i kept on going did not give up on my self but then i could not take it so i stop.Next time i could not go fast at the start of the Beep test and not go slow at lv4 and above