No, I don't mean "community organizing" for a political party. I mean get a job where the state is issuing your paychecks.
Why? My reasons are twofold: you will understand the limitations of government operations, and you will be good at it!
Thomas Sowell, brilliant economist and free-market advocate, was a Marxist until he worked for the Dept. of Labor. This was even in spite of learning economics under Milton Friedman! If Friedman could not convince Sowell to abandon Marxism, then there may be little that Classical Liberals can do to sway Bernie Sanders types. (This may be a lesson in futility to Classical Liberals also)
Some things you will learn working for the government: nobody cares about the taxpayer, nobody cares about efficiency, nobody cares about your effort. But that doesn't matter because you can make a difference. It's the selfless, dutiful types that keep the organizations running at all.
You're selfless, you're dutiful, and you believe in the cause of government control. So make a difference where it will count the most. You'll excel, if you don't turn into this guy: