Answer 1

Hey 👋 Verification is a process by sololearn after one week/month you will automatically verified account here so don't need to ask this More.

Answer 2

I think go to your gmail which you used when registering, then there will be a message containing a link which you tap to verify account.
Because my self i verified on my first day.
But sending messages needs you to first study like five lessons to show your serious with sololearn

Answer 3

The word is that you need to wait about a month to start sending messages because Sololearn is about learning solo, there are other places focused on social messages.
https://sololearn.com/compiler-playground/W0uW3Wks8UBk/?ref=app