Hello,,, If you really don't want to quit, then I suggest you don't say it when you write your resignation,, You are leaving anyway, so say something nice.

Dear xx, hello.

It's a pity to resign from the company at this time. Because I am exhausted, I really can't do this job. It is for this reason that I solemnly resign and hope you can approve it. In addition, before I leave, I will conscientiously do my existing work, sort out the unfinished work and ensure the smooth handover of the work.

I sincerely thank you for your trust in me. I am honored to be a member of the company.

I am sure that the experience of working and studying in the company during this period will become the most precious wealth in my life!

I wish the company a prosperous performance and greater success!

Resignator: ××

Date, year and month

I hope you can quit your job smoothly and find a good job.