Your CV or application creates the first impression that a potential employer has, so it is worth taking your time and doing it well. This is you chance to sell yourself, your skills and experience. In a competitive job market you want to get an interview. Once you have an interview it is up to you to show what you have to offer and what you will bring to the company.
Don't forget you can make an appointment with an adviser to get support with any aspect of your job search and applications.