Building a bankroll in mtt tournaments

[fouralarmbaby]

Hey everyone I am trying to build up a bankroll from about 50 dollars (I am a college student so cant really afford much else at a time). I heard that playing in mtt is a good way to do this. I was thinking of trying to do this by playing in 2 dollar 180 person sit and goes on Full Tilt. Does this sound reasonable to anyone?