Was beethoven sure he could cure his hearing?

Answer 1

No he was not sure if he could cure his hearing.

1802, however, was a year of crisis for Beethoven, with his understanding that the impairedhearing he had noticed for some time was incurable and sure to worsen. That autumn, at a village outside Vienna, Heiligenstadt, he wrote a will-like document, addressed to his two brothers, describing his bitter unhappiness over his affliction in terms suggesting that he thought death was near. But he came through with his determination strengthened and entered a new creative phase, generally called his 'middle period