I am not English (in case you were implying that, maybe I misunderstood), but I totally understand.
Because of your pedigree and history as a sporting nation, it has become a bit of an expectation. I'd imagine most German fans would be terribly disappointed with anything less than semis, & nothing will change with such a strong team coming to Brasil in 2014. I've always loved watching Germany because their football team (and other sports teams) reflected the stereotypical (yet flattering all the same) German mindset - no superstars, just hard work, mental strength & organization. It's nice to see 11 players work so well as a unit, like a well-oiled machine - it's really what football is about. I wouldn't even call it overachieving - hell, if you got to the latter stages of the competitions so many times without star players, then you deserve it all the more.
Indeed it is strange, now, to see a German side a little bit dysfunctional in the bigger games (ever since WC2010) but just remember you are in transition, I doubt this will carry on forever. Plus, there is no shame in losing to Italy or Spain (in their current form of the last few years), especially the latter - it is simply Germans being Germans that means anything other than first place is a disappointment. That sort of mentality is important to have - it makes losing harder to take, but winning much sweeter (sort of like the feeling we have here at United - perfectionists), and it seems many of the German players share the sentiment.
Sorry to go off-topic, guys!