I'm afraid I completely misread the situation.

恐怕我完全看错了形势。

《牛津词典》

I was afraid that they would see through my act because I pretended to be this person who had it all together but I was totally and completely lost.

我怕人们通过我的行为看穿我，因为我总是假装自己是那样的人，实际上那正是我丧失和缺乏的。

youdao

The room I am afraid you are not completely ready, you mind waiting a moment?

您要的房间恐怕还没有完全准备好，您介意等一会儿好吗？

youdao

Every one of them, some completely covered by their burqa, would run away, afraid to appear on camera.

CNN: Afghans divided amid political limbo

So afraid that in parts of Mali they have completely disappeared - fled to neighbouring countries, or gone into hiding.

BBC: Why Mali's Tuareg are lying low