I feel a million times better than I felt yesterday is
Answer Details
The statement "I feel a million times better than I felt yesterday" is an example of hyperbole. This is because the speaker is exaggerating their feelings to emphasize how much better they are feeling compared to the previous day. Using the phrase "a million times better" is an exaggeration because it is impossible to feel a million times better, as feeling good is a subjective feeling and cannot be measured in numerical terms.