At the last minute, I chickened out.

在最后一秒钟，我退缩了。

youdao

I was going to go bungee jumping, but I chickened out.

我是打算去蹦极的，但最后还是放弃了。

youdao

I decided to take flying lessons but just before they started I chickened out.

我原决定上飞行课，但就在开课之前，我因害怕而放弃了。

youdao

In the end, I chickened out, which means I did the right thing.

FORBES: My Ethical Dilemma