Naïve is good, inexpert, untrained, untutored, unversed, even unsophisticated, if you want to ring the changes. “Wet behind the ears” is only mildly offensive.

I think I have known what your native language is; one thing I know about it is that your command of English is a lot better than my command of that language.

Having passed “school leaving level English” you are ahead of a lot of native school leavers. It’s a sort of bitter joke around here that kids leave the local secondary school saying, and writing, things like “Look wot I done”. (I pronounced “oy”).
There never was nothing.