"And...　for example 2: 木「き」　桜木健二「さくら　けんじ」 Why don't u read this word 「木」in second words?" There must be a mistake, I'm pretty sure 桜木 is read as さくらぎ.

Use Anki (search in the web how to use it), and make your own decks: a) Be familiar with Japanese pages. It can be Japanese Twitter accounts, newspaper for kids, manga. Whatever you want, but you need to expose yourself to the vocabulary. b) Every time you encounter a word you don''t know, search that word in this dictionary http://www.ottix.net/cgi-bin/wwwjdic/wwwjdic?1C And put it in your Anki deck. That's the only way to learn. Don't learn Kanjis individually, it doesn't work. Learn words, you'll learn both kanji and vocabulary. Don't take words from a list or something (unless is a really obvious noun), learn words as you encounter them, you need to see them in context. Use Rikaichan/kun to easily know how to read a certain word.

The only method that worked for me is Anki.

Sí, no me quiero imaginar lo que debe ser, para un extranjero, aprender todas las conjugaciones del español. Y para un nativo del Japonés, aprender todos los conectores.

Gracias!

Sí, ahora lo entiendo mejor. Aunque no le logro encontrar sentido a la oración en general, jaja.