My Childhood Dream

"Go to oversea and see wonderful scenery, eat delicious foods of the world, meet various people and make friends"

To go overseas, see some wonderful sceneries, eat delicious foods from different parts of the world, meet and make friends with different people, those are my childhood dreams.

is my childhood dream. Now I became adult. If I describe this feeling more adults way, "I wanna experience and appreciate diverse" :)

Now that I'm already an adult, I think about it this way, "I want to experience and appreciate diversity."

Hello, Akari!

Childhood Dream

"Go overseas and see wonderful scenery, eat the delicious foods of the world, meet various people and make friends"

is my childhood dream. Now I have become (or just "am") an adult. If I describe this feeling in a more adult way, "I want to experience and appreciate diversity" :)

Nice dream! If you just say "...eat delicious foods..." you don't need "the", but the phrase "of the world" makes it more specific.

"Adult" used as an adjective doesn't need to be plural.

You could also say it without quotes, for instance:

To go overseas and..... was my childhood dream.

Good job overall!