I hope you understand my quandaries.
I thank my colleagues and staff.
If you want to learn more about some useful tips on writing resignation letters, then take a look at this article.
With the skills I have gained working with you, I am confident I could be a project head for an environmental awareness program, and in my future career, I will always remember the support you gave me.
I will always be grateful to {Your Company} for all the help I have received.
These include a variety of different resignation letters and are accessible from the templates section of Microsoft Word.