Well ask yourself how did you learn English? Most native speakers of a language do not learn the grammar of the language properly, rather as kids they learn by hearing, trying, talking, for example, if you ask an individual why do we, English speakers, say 'an' in front of some words instead of 'a' they will say, as I would, 'I don't know, its just how it is, it woul dsound wrong the other way', because we know , have learned from hearing people and talking ourselves, so for example, the harakat issue, I cannot read arabic fluently, but I can read sometimes without harakat, because its just about practice, its about knowing generally the words and what would fit most.
So, for example, I speak very very very little arabic with a friend at college, and he laughs at me because I speak the 'Old Arabic', mainly due to the fact that I speak from phrases from the Qur'an, so I use a word which I know the meaning of and say it, like eg 'Fa Kul' or something, and this way you learn the meaning of the words, so when you recite Qur'an know what youa re reciting with the meaning, word for word, so you know when you read an ayah, for example, Fa Kuli Washrabi, you will know, Fa is So, Kul is eat, Wa is And and Ashrab or Ishrab is drink, and then use that in your everyday life.
And Allah knows best, I mean some methods work better for different people, but obviously it would be good to learn grammar at some point too!
