There's no point getting upset about it.

犯不着为此事难过。

《牛津词典》

Its not worth getting upset about.

不值患上为这件事苦恼。

youdao

Loosen up! It's not worth getting upset about.

放松点儿！不值得为这件事烦恼。

youdao

(recording) As one woman in Warsaw explains, politicians and the press have been getting very upset about the missile shield, but ever since Poland joined NATO ordinary Poles have felt much stronger and more secure.

VOA: standard.2009.10.22

It's as though you try-- try getting upset about the fact that two plus two equals four.

这就像你在尝试-,为二加二等于四而烦恼。

耶鲁公开课 - 死亡课程节选

However, to say that nobody was getting upset about this particular provision is really off base.

FORBES: More Small Businesses Offering Health Care To Employees Thanks To Obamacare

Now, with Acer getting all in a huff about competition and Microsoft conceding that some OEMs might be a little upset when this thing ships, we might just have an idea for you.

ENGADGET: Microsoft Surface for Windows RT tablet coming October 26th for $199?