Are you looking for help in writing an admissions essay or a statement of purpose?
I recommend an online search of "statement of purpose." Your major, your personal interests, your achievements, all of these play a part in composing a statement of purpose.
I tried to find a few websites for you but some seem commercial in nature and want you to pay for access to their sample essays. Keep looking, but here is one site I found.
Good luck.
The Statement of Purpose is the single most important part of your application that will tell the admissions committee who you are, what has influenced your career path so far, your professional interests and where you plan to go from here.
As the name signifies, the Statement of Purpose is your personal statement about who you are, what has influenced your career path so far, your professional interests and where you plan to go from here. It need not be a bald statement of facts; several successful SoPs address these questions through anecdotes, stories or by describing their hero. But whether your SoP is subtle or to the point, it must be well written to be successful.