First notebook entry: Introducing myself

English is an official language. To study English is a very good (great) chance to get many things. Not only having many foreign friends but also getting a lot of information about the world is a good thing.
When I was travelling many countries, I felt the necessity of studying English. So I am happy to knowing this site and I'm excited to get many things from here.

Well done!

Welcome Haeni,

error better [alternative] notes

First notebook entry: Introducing myself

English is an official language. To study English is very great increases my chances to get many things, not only having many foreign friends but also getting a lot of information about the world.

Here, getting, having is implied, so you dont need to say it explicitly.

When I was travelling in many countries, I felt the necessity of for studying English.

1. So I'm happy to knowing about this site and I'm excited to get many things from here.

OR ...

2. So I'm happy to know ing about this site and I'm excited to get many things from here [it].

1=2, they mean the same, but you cannot mix to and knowing.

1. to know about (infinitive)

2. knowing about (present progressive tense)

Good work :)