Are you getting the answer to the question ,'For what, are you studying '??

I am really strugging to get answer for that question. In my schooling days I thought , "I am studying for getting first rank in class". Then I understood that the answer was not sufficient for me to keep interest in studies.
Somehow I managed to get P.C Thomas tuition Centre in Plus two days. Then I understood , I was nothing , I was totally weak in lot of areas . Getting a good rank in P.C class was very difficult, that retarded my interest in studies. Then I kept another target as getting admission in a good engineering college. After getting ECE in Thrissur GEC, I realised that also not giving a permanent desire for study. For what I am studying ? getting good job, getting a rich girl, buying a car....etc.. These answers had come through my mind . But those were not giving me a final answer or an end to that question.
After started to write some technical things in my blog, I realised that I could have write more technical things or whatever I had studied. That would be very useful to next generation and also my article or blog would live even if my age over. Currently what I am thinking, just write down in blog whatever I am studing. Actually these intention, really give me interest in studing.