[Tangram]

First off, as long as you know the kana, it's never to early to start learning kanji.

How you learn kanji depends on how literate you aim to be. If you want to be able to pick up a book, read it with no problem, get puns and such, you need to learn each kanji from every direction. Meanings, readings, and get familiar with some of the more common compounds it appears in. Of course, you'll forget some of these with lack of use - even natural speakers do. However, give it your best effort. And it's not as hard as many make it out to be.

If you just want to get to the point of not being lost when browsing the web, then just learn the English meanings and common uses.

Kanji learning is a very personal thing. You need to do it at a pace that is comfortable for you and will take you where you need to be.