I completely understand your sentiments. I have always liked The Smiths/Morrissey, and had a few albums, but it was only really this year that I got totally obsessed after seeing him live. In the months that followed I bought all the studio albums, DVD's, live stuff, joined here, and lots of other stuff. I have always been hugely into music and very influenced by lyrics. I love Radiohead, but no other artist has really lifted my mood as effectively. I am amazed with the breadth and depth of the music and lyrics, there are songs to fit every mood.
I can't imagine my life without Morrissey's music now. I've found myself to be a happier person since getting more involved, and my life feels somehow more complete, which to an ordinary boy (or girl for that matter) would probably sound trite, but I know you understand.
I've not become completely mental and started dressing up in his honour or anything (though I totally respect people who do that to show their appreciation), or trying to visit all locations he's been to (though combined with a pub crawl that would be quite fun), but I am 100% Morrissey music obsessed and a reasonable bit obsessed about everything else relating to him too.
I don't know how many other artists can speak to their audience the way that he does to us, or how much devotion they inspire - I'm sure quite a few of them have "fans" like us, but no one else has ever managed it with me.