There's not much to be done about the impossibility. One must instead get rid of the desire.

Flourishing is properly the main human end, and flourishing is activity of soul that succeeds in accord with virtue.

It is bad to want something that not even God could attain, especially when the impossibility becomes obvious.

Epistemic competence might be posterior to knowledge conceptually, however, while still prior metaphysically.

Knowledge in my view is a form of action. It involves endeavors to get it right, and more broadly it concerns aimings, which can be functional rather than intentional.

We must distinguish judging from guessing.

Suppose we wonder whether we should trust the deliverances of our basic epistemic competences. If those are indeed our basic competences, then in order properly to satisfy our curiosity we will inevitably rely on one or more of them. So, either we squelch our curiosity or we will have to fall into the circularity or regress to which the skeptic objects.