No need to be confused when you want to say that something, e.g. work, school, song, etc, has made you bored or tired. In this case, you can say, “I am bored with my work” or “I am tired of my work”. So what about “I am bored of my work”?
In my opinion and according to the lesson I have got, the word “bored” should be followed by “with”, not by “of”, while when you want to use the word “tired”, you should use the word “of”. So what do you think? Do you have any opinion about “bored with” and “bored of”?