How do I tell my boss I'm leaving? (nicely)?

You can tell him that eventually you're not felling good and that you need some space. So, you're leaving because of those things

Just say Hi (name) I have enjoyed my time here but I'd like to move on to more sorry but this is mee

Be honest with you boss. Tell him/her why you decided to leave and how much u appreciate your bosses support in this.

Thank him/her for the opportunity they have given you to work for the company and tell them that you have reached a point in your life that you want to have new experiences

I'm leaving my good sir/Madam/ma'am and I wish you well *tips ferdora* (this will show how classy you are and leave your boss stunned at the awesomeness

It has been an honorable and pleasurable experiance to work for you. However, I have to leave now. Thank you very much for caring for me!

First explain how you are extremely grateful for the opportunity you were given at the company, but unfortunately there was a more promising job opportunity that became available.

Hmm.... that is a good question. One that can be really challenging and difficult to think about. You may even feel that this is not something you want to deal with or face depending on how long you have been at your job. As difficult as it may be ,you might want to prepare yourself for the situation beforehand. Perhaps think out what you want to say, write it down, go over it and decide what is best for you. If you find it to be to hard to figure out on your own, perhaps seeking some guidance or support could help. Whether it be a friend, a partner, or another trusted person who can possibly help you to the situation a different way.

I've been in your position before. The best way is to write a professional letter explaining that you are resigning, your reason for leaving and that you appreciate the valuable learning experience you got from your work experience. There are wonderful online resources for sample letters to help you out. Good luck.