Future???

I really think a lot today..... But keeping asking myself a same question..... " what you want to be"...... Many of my friends already think for their future but for me is a blank....... Although I keep wondering..... But at the end I had no conclusion...... Those who called 'adults' keep saying that " you must study hard for better future"...... I really had a question here " What are my future is???"...... All you told us is just study, study and study....... Did you really know what we need?? I am confusing..... Hope I can get the answer in some days.......