People aren't necessarily relaxed. A lot of people have a good relaxed act just to navigate in this place. And, I doubt it's a vitamin deficiency.
I think it's more likely a deficiency of being aligned with the craziness of the goings on in this world. There's nothing wrong with you. It's just hard for normal people to live in this profoundly abnormal world.
"It's no measure of health to be well-adjusted to a profoundly sick society." ---Jiddu Krishnamurti