Your cover letter should be job-centered not self-centered.
The cover letter should be 1 page maximum.
Use regular business letter format.
Always address the letter to a specific person, not “To Whom It May Concern.”
Research the name of the contact person or hiring manager.
You may use, “To the Hiring Manager” or “To the Selection Committee Chairperson” if needed.
Proofread and check your letter for proper grammar.