Life A ????????????

I sometimes think that my life like a question mark coz i have no clue as to what to do in life. People call me including myself confused. How am i supposed to clear my confusion. I also have a confidence problem (according to me very very low confidence almost like nil confidence now
:( ) which scares me n makes me tense. I am always worried & tensed about the smallest thing. I am more worried as to what willy future be & what am i going to do in life. And have other tensions i.e. house from where i dont wanna go & now added to my list of tensions is marriage. Marriage is the word which freaks me out be it any. Why cant i live in peace & may be a little happy staying single. May be if i feel after some years might decide to get married (which for now is a BIG NO ). I have no job in the field i have studied in & dont know where will life take me as LIFE IS UNPREDICTABLE. Dont know what bad or good is in store for me. I am tensed & scared .