Scholarship / How to put this idea in better words (about why is like this subject) [3]

I'm writing this essay in which one of the paragraphs is about why is like this subject. So this subject OFC is some what similar to another subject EMW I had earlier. I had performed very weakly in EMW failing to grasp concepts and hence ended up getting an E. But I do not easily give in to failures. So I spent my entire summer break trying to understand the concepts clearly and master the subject. This eventually payed off when I did exceptionally well in the other subjects involving fields.. In the 3 other subjects that was a continuation of EMW i got 2 A's and 1 A star..

The main idea is to convince the reader that I have made up for the E by performing well later
This is a part of an essay for a scholarship. SO please help me with this paragraph
Thank you