Translation of short-tempered in German

So by age twelve, I had decided that I wanted to learn English and I was studying for the United States TOEFL at age twenty. Being bilingual practically from birth, makes speaking languages very easy for me.
I think that it is easy to find new students, as many of them have already visited schools in Switzerland or Germany, but most of them have been to Berlin. Spanish learning is less common these days.
Have I forgotten to tell you my name because you see only the usernames. I'm sorry for that. You are right the username ---- stands for Gabriel. Besides, I'm completely healthy again, thanks.