well, I can only say,I seldom speak English,but I use it frequently in written English.
of course,I speak and use Chinese all the time,cause' I'm a native Chinese and I live in China.
one of the reasons why I seldom speak English is that I live in school and my classmates just simply refuse English,obviously,they all are bad at English,60 out of 100 is the highest scores they can get actually.