Hallo meine Lieben,
here’s a tricky one. I’ve noticed that many German learners, English speakers especially, have trouble distinguishing s and z. Either they mix them up or make them sound the same.
The best example can be heard in sauber (clean) and Zauber (magic). If a word starts with s, it buzzes like the English z. A German z however is pronounced like ts in ‘hats’.
Here’s a video so you can hear it. Can you tell the difference? (yes, I have a dinosaur on my wall )
Try saying ein sauberer Zauberer (a clean magician) And once you can do that, try seufzen (to sigh)