The French you learn in school is not at all the same language as what you encounter when speaking to people in real life - there are all kinds of shortcuts, informalities, and other differences that you need to be familiar with in order to carry on a conversation. Check out some resources that focus on how French is actually spoken.
Dictées are a classic way to practice French, even for native speakers. For them, dictées are a test of grammar (particularly agreement) and spelling - sort of like super-charged spelling bees. For French students, dictées are an excellent form of combined listening and writing practice.
Dictées, or dictation exercises, are excellent for working on your French listening comprehension as well as spelling, vocabulary, and grammar all at the same time. Scribe is a very sophisticated program that provides real-time feedback as you listen and type.
Eager for a new way to work on your French listening comprehension? Take a look at Yabla French, a subscription site with a massive collection of original videos featuring native speakers to help you learn and practice French at any level.