First notebook entry: Introducing myself

I'm twenty-four years old. I'm and a journalist. My native language is Russian and I love it. However, I want to speak on the "universal" language. because I appreciate the global information network and I like travelling.
Also, I want to do anything with my constraint and speak English freely.

I didn't understand what you meant to say in the last sentence; it seemed like a contradiction.

I hope the rest of the corrections are clear enough (it helps a lot to write words as numbers, as well as it being a standard rule of written English).

First notebook entry: Introducing myself

I'm 24 years old. I'm [also] a journalist. My native language is Russian and I love it, but I want to be able to speak on the universal language because I appreciate the global information net internet and like travelling.
Also I want to do anything with relieve my constraint and speak english freely.

So it ends up looking like this:

First notebook entry: Introducing myself

I'm 24 years old. I'm also a journalist. My native language is Russian and I love it, but I want to be able to speak the universal language because I appreciate the  internet and like travelling. Also I want to relieve my constraint and speak english freely.

Good job, you're on your way :)