Headaches for 2 years are often due to migraine, tension, or stress that need long-term control rather than short relief. Keep a regular sleep routine, stay hydrated, avoid skipping meals, reduce screen time, and manage stress to prevent triggers. Do light exercise, maintain good posture, and keep a headache diary to identify patterns and triggers. If it keeps recurring or does not improve, consult a doctor to review the cause and plan proper long-term treatment.