Evaluate the criticism of philosophy.

It is far too general to have much worth as a question or intellectual exercise. Where did you see it posed?

it's an assignment given to me by my philosophy lecturer.

This a probably a lazy way of finding out what you have read. I suggest you research the known iconoclasts of 'analytical philosophy' (Rorty, Wittgenstein, Derrida etc) together with their opponents. A central theme might be Die Kehre (The Turn) which started with Heidegger* who refocused philosophy from 'thinking' ( which was to be left to psychologists) onto 'language' as the constraining vehicle for 'thought'. One consequence was Rorty's abondonment of any philosophical claim to say anything useful about 'epistemology' .
*"Language speaks the Man" Heideggar
"The limits of my language are the limits of my world" Wittgenstein