I am new to Japanese language too. I just started with Hiragana and will Katakana soon. I think the 1st thing we should do is to learn alphabet then go with grammar. ^^

I've also just started learning Japanese and I decided to first learn Hiragana, then Katakana and after that I want to focus on the Kanji. So to learn Hiragana I'm using a online tool called 'WRTS', it's a dutch website that helps me to learn the Hiragana and how to pronounce them, besides that I'm also using a textbook what a must have is for learning Japanese called 'Genki'. The tool has been very successful for me. For Katakana I will probably do the same method as I'm doing right now for Hiragana. To learn Kanji I would recommend the book called 'Remembering the Kanji (RTK)', this book is a light in the dark to learn all the Kanji. I can recommend you the following two websites to learn, but there are of course many more that can be very useful: www.wrts.nl (This is a dutch website, so you'll have to translate it. But if you really want to use it, I can help you with it. http://www.memrise.com/

Learn the Hiragana and the Katakana off the start. I used a website called readthekanji.com . It was like a $5 membership but I BLASTED through learning both ( like literally took me a month to learn both systems). It's basically flash cards. Anyway, learn hiragana and katakana, then go to grammar, and ease yourself into kanji