in a situation that has unpleasant consequences for one

dans de beaux draps, dans le pétrin
the state in which one loses all one's confidence and willingness to continue doing something

peur de dernière minute, perte soudaine de courage
to suddenly and unexpectedly take away support or remove something that someone relies on, leaving them in a difficult situation
with complete sincerity, enthusiasm, or commitment
to become someone's wife or husband during a special ceremony

sauter le pas, se décider à se marier
to make a hasty or premature judgment or decision without sufficient evidence or information
something of high priority or special importance

quelque chose d'important, une affaire importante
to become extremely upset, agitated, or overwhelmed by fear, anxiety, or excitement

paniquer, flipper
a situation that is an absolute disaster or is the worst thing that could possibly happen

une catastrophe absolue, le pire qui puisse arriver
feeling of extreme nervousness, anxiety, or restlessness, especially before an event or important moment

trac, nervosité
used when one is certain that something will happen at some point in the future

tu verras, souviens-toi de ce que je te dis
to relax or calm down, often used to tell someone to stop being overly anxious or excited

se détendre, se calmer
![to [pull] the rug (out|) from under {sb} to [pull] the rug (out|) from under {sb}](/assets/img/no-pic-260w.png)