This means being in a difficult situation that you cannot seem to get out of.

This is a difficult situation that you cannot seem to get out of.

句1，mean 是及物动词。接 to do 是“打算做某事”，接 doing 是“意味着做某事”，无论如何必须有一个宾语。去掉 being 后，介词短语能作宾语吗？所以，being 是必须的。being in a difficult situation “处在艰难的境地/形势”，作 means 的宾语。

句2，是主系表 + 定语从句。很简单。