请教一道托福口语题急用!

描述你学一个学科的过程.
I would like to describe the process in learning the TOEFL.
I think there are 3 steps to name.
At first,I refer to the official guide to have a mainly understanding of the test.I become familiar with the question types after doing the exercises in that book.
Then,it comes the key step.I compare my answers to the script to find out the mistakes I made before,and make analysis about them.
Last but not least,I share my opinions during the study with classmates and often consult to experienced teacher to get improved.