Is my letter in order.

I am writing a motivation letter for xxx course disccusing the motivation for the choice of the subject in not more than 1000 characters .I will appreciate every good criticism of my letter.
Thanks in advance

After studying for a B.Sc. degree in xxx in xxxx and graduating at the top of my class . I find a need to broaden my horizon by studying xxx course.
This interest was aroused after taking a course called mathematical methods and completing my B.Sc. Thesis in the area of xxx which was aimed at solving different heat conduction model problems by using Alternating direction implicit (ADI) method with the aid of Matlab as a tool . I discovered while working on my project that I was limited to solving problems with a static boundary conditions due to my present knowledge.
The track suited for me is xxx because studying this course will provide me a concrete foundation to a successful career in the oil and gas sector and also in the academic community of my country .The multidisciplinary nature of the course will open doors for broader application of these concepts to solve problems once I complete the studies .
I am confident that I have the necessary combination of self-motivation and academic knowledge to succeed in the program. I will be delighted if the application is decided in my favour.

Yours faithfully
xxxx