Choices

How do you make a choice when you don't know what is it that you want?

How do you make a choice when you don't know if what you want is achievable or isn't?

How do you make a choice when what is achieveable isn't right and what isn't achievable is?

How do you make a choice when you can't make out the difference between between the right and the wrongs?

How do you find the answers?Even google doesn't help!