A friend once told me, when you're lost you're liberal and when you're liberal you can go anywhere
Is "liberal" used properly here?
"liberal" normally means "politically liberal" - the exact connotations of this vary from one country to another: the Liberals are a centrist party in the UK, whereas "liberal" is used to describe the left wing of the Democratic Party in the USA. Other meanings of "liberal" can be checked in a dictionary.
I suspect the correct word to use would be "free". This can mean "at liberty" (which would be a possible alternative.)