I think vns are a great learning tool for japanese but I think it's not something good to start with. If you want to practice reading your hiragana and katakana you could read through one for a bit. For some easy practice these links aren't very intimidating.
http://www.textfugu.com/wp-content/uploads/2010/11/it-is-a-worksheet.pdf
http://www.csus.edu/indiv/s/sheaa/projects/genki/hiragana-timer.html
Learn some grammar.
Tae Kim, Genki, Imabi, Ixrec's Guide.
Learn some Kanji and Vocabulary.
WaniKani, Remembering the Kanji, Anki, Memrise(not much material but nice UI if you want an alternative to Anki), KanKen 3 DS(intermediate, good writing practice as well)
As for reading practice try out Yotsuba(manga) and for vns just pick something you've already read in english to start out with.
When you've internalized about 1000 kanji along with with vocabulary. Just start reading everyday vns, novels, etc (That's about where I'm at currently).