To be completely honest - languages have always been easy for me

You are lucky! I can't say the same about myself. I found the exact sciences, especially chemistry, much easier, as well as geography and history.

It's all much easier and more playful as a child and teenager.

This is true. I used to have to read a text once and memorize it. Now it's a little more difficult. Maybe because my head is full of other things.

That, in turn, could be really fun

I hope so. 😊