Depending what you want to be famous for pretty much you have to be involved in that specific network heavily, have to be able to communicate effectively, and more importantly you have to be different from the other seven million people who want to make it doing the same exact thing as you.
There r different kinds of fame. Despicable excuses of humans who shame our species, or people who have nothing to offer humanity and r willing to do anything no matter how stupid so people will know who they are, or talented sports/entertainers.Of course it's wonderful to b famous for a scientific advancement etc but not everyone is so innovative. Is it better to b famous or to live your life in a heroic way that may be quiet but makes u and those who love you respect and inspire?
Well, if you have a goal or a dream, and your extremely passionate about it (I mean passionate enough to do ANYTHING to accomplish it), then you should pursue that dream. Don't ever let anyone tell you "it's a stupid dream" or "that'll never happen", because chances are, they're just sad because they gave up on a dream of their's because someone told them the same thing. Always hold on to it, and never give up.
But also remember, it is important that you constantly get better at this craft. Don't stop practicing, and if the opportunity to be taught something comes up, don't hesitate to learn. Remember this quote "You're never too good to get better".
Take an example of mine before seven month I was a computer science teacher of a school only 1200 students and 50 teachers know me apart from my family. Now after 7 months about millions of people call me as Guruji (means Master). So I am famous now just by bring my talent and skill out which I was hiding by developing a web site http://cbsecsnip.in You have to find your talent and skill which is hidden and show then to this world you will become FAMOUS.