Practice 11 evaluation

This is my first practice at home about the scale that will assess in the examination day, for the piano we have to play A minor and E minor scale with 2 hands and also there is a contrary and together playing. In this practice i have some difficulties during the contrary parts, because it was a bit confusing and also i still confuse where to start the contrary parts. So, i think i have to practice more if i want a good result in the examination or practical exam.