I'm going through a hard time. I'm really stressed."

恰逢困境，我很难受“

哈佛公开课 - 幸福课课程节选

They're calling you all kinds of names! And it might be hurting your feelings.

他们给你取各种各样的绰号，让你心里很难受。

I don't care课堂 - SpeakingMax英语口语达人

You can say to someone near you because you're really sad about it, "I was disappointed."

你心里很难受，你可以对你身边的人说 "I was disappointed."

I was 课堂 - SpeakingMax英语口语达人