Here are 6 simple steps in writing a resignation letter to a job that you hate: 1. Keep it short and sweet.Just resign, with a stated final date. Keep it very brief and to the point. Briefly provide context for why you're resigning. Refrain from going into too many details that may create a negative tone. Keep it brief but focused. Clearly state your desire to resign. Just like writing a cover letter when you are applying for a job, your resignation letter should be a quick read and straight to the point. 2) Yes, be cordial and write a formal resignation letter.