Performance anxiety is common before exams, public speaking, or work presentations. It stems from fear of judgment or failure. Symptoms may include sweating, rapid heartbeat, and difficulty focusing. Managing it involves preparation, relaxation exercises, and positive visualization. Breathing techniques calm the body, while cognitive-behavioral therapy helps change negative thought patterns. Over time, gradual exposure and practice build confidence. Support from mentors or therapists can also make a difference. Remember, nervousness is natural—it means you care about doing well.