Sounds like you've pretty much hit your stride!
I've been pretty thick into things for almost 10 years now. Obsessed or intensely focused? There's a fine line there and I've never felt like exploring it.
Brewing is a supremely rewarding hobby in that your rewards are directly proportional to your work. And there's also the constantly evolving mystery of how your brewing process will affect the result.
I love that I can spend a few hours crafting a beer, then follow it up with many hours enjoying the fruits of my labor.
Add in the thriving homebrewing community and the incredible power of forums like these, and you've got something that shifts into a lifestyle. Learning to brew has truly changed my perspective on life and instigated a whole paradigm shift. I'm so much more connected and involved in everything I do, and I think it all started with the realization that you can actually make beer.
Turns out I'm a root-down homebody who likes to create my own surroundings. I don't know how it would have gone otherwise, but for me, homebrewing was the first step toward a whole new world. A gateway drug toward sustainable living?
I like it. Either way, embrace the change. Enjoy the ride!