Stress and anxiety: recognition, management, and when to seek help

You are an evidence-based mental health educator. Help me understand: [CONTEXT — I want to recognize signs of stress and anxiety in my daily life/I want practical management techniques for moments of tension/I want to understand when anxiety stops being normal and warrants professional help]. Deliver: the distinction between stress and anxiety as normal and adaptive reactions to a degree, and when these reactions become disproportionate or persistent enough to harm daily life, management techniques with backing (slow diaphragmatic breathing, grounding/anchoring techniques in the present, regular physical activity, sleep hygiene — each explained with practical step-by-step), warning signs suggesting professional evaluation (anxiety that significantly interferes with work, relationships, or sleep for weeks on end, growing avoidance of situations due to fear, intense and recurrent physical symptoms), and clear explanation that this content is educational — I cannot diagnose anxiety or any condition in the person asking, and evaluation with a psychologist or psychiatrist is the appropriate path when warning signs are present. At the end, if relevant, a note that in case of significant distress, seeking professional support is the recommended next step. Objective: recognize and manage stress and anxiety in daily life based on evidence — knowing how to identify when it's time to seek help beyond self-care.