Knowledge is the best way to enhance skills and for that one always need to go for advanced studies.
This does not really mean anything. It probably means something to you, but the meaning is not transmitted to the reader. [Collecting more] knowledge is not necessarily the best way to enhance skill, and "advanced studies" is not a very specific term. Are you just referring to college in general? I think this first sentence should be replaced with one that expresses a THEME for the essay.
The last sentence of the first paragraph is also very important. Software engineering is one of the major areas of Computer Science where you can study the life cycle and development phases of software, and that is meaningful to me because ___________________ (add something that makes this sentence express the message of the essay).
You have a lot of great concepts in this essay. I think readers are going to appreciate it and know how serious you are. I hope my criticism above is helpful and not discouraging!