Frustration in Prague

I had my first frustrating experience of the trip this afternoon. While it only took me 30 minutes to get from the airport in Prague to the main train station, it took another 2 hours to find my hostel from there. This was particularly annoying since the hostel is IN the main train station. I can't decide if it was the lack of sleep or just my mindset as a "stupid american" that caused the trouble. But I did find it and am now safe and sound. I'll be in touch.