Antonyms for the phrase "get one's nerves" could include expressions like "calm one's nerves," "soothe one's nerves," or "ease one's nerves." Other antonyms might be "relax," "detoxify," or "disengage." Alternatively, one might simply say that they are feeling at ease, relaxed, or comfortable, rather than experiencing any heightened sense of nervousness or agitation. Whatever the case may be, finding ways to release tension and stress can be incredibly helpful for maintaining good physical and mental health, as well as for improving one's overall quality of life. So when you find yourself getting on edge or feeling overwhelmed, take a step back, breathe deeply, and try to find a way to unwind and let go.