Even though I used the same excel files provided in the lessons, the starting month and ending month is different in my chart when compared to the lesson. Mine starts from January and ends in December while the video starts from feb 2017 to feb 2018. I have no idea how to change the scale to match the video lessons.
Did you use the exact same steps as shown in the lessons?
You probably changed something along the way.. Please take a careful look. Thanks!