A. Have you ever donated blood? Do you think technology will help humans live longer and longer?

Yes, I did.

I was proud of myself because I could help someone in my teenage days, but now I am getting older and my health is not good.

I pity to hear the news that many patients need blood to be cured but there isn’t enough amount to cover them due to pandemic virus.

=> Corrected: The sentences are corrected grammatically.

B. Make these sentences into English.

(12/17/21)

-그녀는 눈이 너무 높아.

She expects too much from a guy. -> She's too picky.

-돈벼락 맞는 건 시간 문제라고.

It's just matter of time before you hit the jackpot. -> It's only a matter of time before I strike it rich.

-그는 돈을 물 쓰듯 해요.

He spends money like water. -> He was throwing money around.

=> Another way: Your sentences are okay and these are other ways of saying them.