2. Go To A Convention
Some might think this is similar to Larp. After all, people dress up at conventions, right? But of course it's not the same thing. In all honesty I'm not sure if there are any conventions dedicated solely to Game of Thrones, but surely if your into your Fantasy (or Science Fiction) literature there's a convention for you, and from what I can tell George RR Martin himself frequents a number of them himself. It's probably one that requires a bit of money for travel, but if you like your TV/Books that much then what better way to meet like minded people? You never know, you might discover a new obsession, and the time between now and next March will fly by.