It’s normal to feel afraid of the unfamiliar.
I compare it to my cat’s (Lila) perception of the world. A small sound I make with a spoon may startle her because she doesn’t understand that it’s just a spoon and nothing else. This is the same with us humans. Something simple may startle us because we just don’t know any better.
Breathing techniques are a great way to calm the heart when you’re afraid.
So don’t forget to breath.