Sentence:
Du bist selbst Trainerin in einer kinkels AGKinkels-AG an einer Grundschule in Oldenburg.
This(This sentence means: "You are a trainer in a KinkelsAG at a primary schoolis from an audio in Oldenburgmy MOOC course.", right? So it is possible that I misparsed Kinkles, but it doesn’t seem to matter for this question.)
I think this sentence means:
You are a trainer in a Kinkels AG at a primary school in Oldenburg.
If yes, wontwon’t it be sufficient to write this sentence without selbst? Why do we need selbst in this sentence?