Whenever someone is going through some career confusion at any point in his/her life, they try to reach guide or mentor. Usual discussion is like this:
You: I am confused and not sure what should I do/take up in career.
Reply: Ok so what is your interest?
You: [in your mind] if that would have been clear, why I would have come here
So no one else can suggest you a career that is good for us. It is self exploration cycle which each one of us has to go through on our own. But still there are some common mistakes which can surely be avoided while making these choices