I took 2 lessons at GABA today. It was very good lessons.
I spoke a lot and instructor correct to the natural way. But I've known most of all words. Just forget how to use them. If I didn't use them it means I forgot these words. And I doesn't mean that "I lose English skill", just forget and I can get them back if I use them.
So I have to keep using them! lots of words as much as I know!