Я из Китая. Меня зовут Саса и я здесь работаю. Россию я люблю, поэтому 

хорошо учу русский языки. Это очень важино для меня. Я хочую многи други

познакомиться с разными людьми.

Have you noted yet that all letters can be big (capital) and small (lowercase)?  You should to write beginning of sentences, names and names of something (f.g. countries, shops’ names, streets’ names) with a capital letter.

Each sentence can finish with a dot (.), exclamation mark (!) or with a question mark (?).

Good luck! :)

Good work! I understand how hard it is to learn Russian, and hope that my corrections would help you in it.
And let me give you advice: do not forget about punctuation. In Russia we often use inversion and it is quite difficult to understand a text without commas.

First notebook entry: Introducing myself