Translation of idiotic in German

After dinner we walked back and saw some interesting sites and shops on the way. Everything was quite impressive, as always in a new country. We entered the hotel and took an elevator to our room.
Our bus was completely full and we were the only Europeans on our tour. There were also Americans and people from South Korea. The driver took us to a place called Tam Coc. He drove like an idiot.
Yes, I know that because I have visited there. I speak German and I am working on my Spanish. Where are you from originally? Are you going to a some language school and what is the best way to learn for you?