Is this text is correct?

Hello! My name is Alex. I am twenty one years old and I´m from Mexico. I´m a student in the high school and in September I will to finish.
The next year I will begin my own business: a restaurant. I would like my restaurant be of food to serve Italian food.  I will prepare "pastas" and, obviously the pizza can´t miss.
I study English because I like so much to learn so much and I dedicate my free time free to learn. also In addition to English, I study Russian because I love it the pronunciation of this language.

[Good job.  If you study in high school, it means that you are a student there.  If you are a student OF high school, it means that you study the subject of high school itself.]