I learn English since I'm ten, started at school, now I'm 20 and i'm pretty good at it, but when I have to read, If i see a number I'll still say it in French half the time... Same for cities, or names, I forget the accent...
Also, phonetics. English pronounciation is horrible for French native, and I am no exception. I know the phonetics alphabet, but I still can't get it right, and my accent is terrible when I speak. Maybe it would be better if I wasn't too shy to SPEAK in class...