In Kindergarten, I didn’t know any English. So the Spanish half of the day was fine, but the English half was really scary.
I didn’t understand anything. I didn’t want to be called on or go to the board. I tried to hide. I learned though. Not right away, but slowly.
Now I’m in second grade, and I even think in both languages. If I’m in English class and you point at that thing, in my brain I think of it as a “chair” first, and not a “silla.”
I still speak Spanish at home. I still dream in Spanish. But English isn’t scary anymore.