Childhood trauma?

Are we the way we are because of early childhood trauma? I realised i had a lot of trauma in early years, and i undermined it saying everyone faces the same thing and it’s no big deal everyone goes through it.

When i was a kid i couldn’t form sentences and replies to give immediately, was extremely shy. I was emotional but people around me made me cringe when i expressed my emotions.

Do you guys also have childhood trauma? And you are also downplaying the trauma telling yourself it was no big deal?