Answer:
Self prophecy
Explanation:
Self prophecy is a prediction. It causes because of its true due to the behavior of a person who believes in it. It is not about to guess anything but it is more than that of guessing things. Self prophecy comes from a person predicted it and put it forward. The predictor is biased because of their prediction and takes action results in right or wrong prediction happened. An everyday example can be a self-fulfilling example.
Thus here in the above context, if someday you have forgotten your speech, not because you are not prepared but because of the afraid. You said that I will blow it. It is an experience of self prophecy.
