No es para tanto

No es para tanto is a useful for expressing the need for a reality check. The rough meaning is: The situation is not as bad as you are making it seem. Here are some examples.

• Mira, tranquila, no es para tanto. Everything will be all right. Things aren't as bad as your reaction suggests.
• A conversation snippet:
  — ¿Quieres que llame al médico? Shall I call the doctor?
  — No. No es para tanto. No, I'm sure it's nothing. (not serious enough to require medical attention)

Recall that the adverb tanto means so much or that much. No me des tanto. Don't give me that much. So the idea of no es para tanto is that the way the situation is being characterized is out of proportion with reality.

No es para tanto also works with tampoco. Cállate, no es para tanto tampoco. It's bad, but it's not that bad.

No es para que te pongas así

An alternative: Pero tampoco es para que te pongas asi. You're overreacting. Things aren't so bad.