There's no need to take stress if you know how to manage stressful situations. However, you seem to be showing symptoms of anxiety which is curable with medication, counseling, lifestyle changes and behavior modification.
Next Steps
Please see a counselling psychologist or a clinical psychologist or a psychiatrist for an evaluation and further course of action.
Health Tips
Deep breathing like anulom vilom and bhramri pranayam are good for Emotional instability.