Corrections in red.  Stylistics in blue.

About Me

Hello, my name is Nick. I am 10 years old. I am from Russia.
About food. I prefer meat, especially fried pork. I like almost fruits. I don't like figs, watermelon. or mango.
About vegetables. I don't like pumpkin, eggplant, vegetable marrow, etc.
About sports. I'm interested in volleyball and football. I like to play these sports. I don't like discus, or axe throwing.  I don't like cross-country skiing, but prefer downhill skiing.
About games. I don't like sudoku or puzzles, but not all of them. [1]
Thank you for your attention.  See you later!!!

[1]  The phrase "but not all of them" is a little hard to understand.  Does "them" refer to "games", or only to sudoku and puzzles?

You wrote your post very well!