A frequently used idiom is:
"I don't want/like to blow my own trumpet but ..."
Example: I don't like to blow my own trumpet but I think you will find I'm rather good at answering these questions.
Here are some more examples
A frequently used idiom is:
"I don't want/like to blow my own trumpet but ..."
Example: I don't like to blow my own trumpet but I think you will find I'm rather good at answering these questions.
Here are some more examples