The phrase "gets one's hair" is used to describe someone who is agitated or annoyed. Some antonyms for this phrase would be "calms down," "relaxes," or "unwinds." Instead of getting one's hair, one could "keep cool," "maintain composure," or even "remain tranquil." These antonyms suggest a sense of calmness and peace rather than being upset or irritated. Sometimes, finding ways to calm oneself down can be challenging, but practicing mindfulness, deep breathing exercises, and meditation can be effective ways to achieve a more peaceful state of mind. By practicing these techniques, you can stay calm, even in the most stressful situations.