If you need that $50 then you probably shouldnt be gambling with it...

If you still want to then try and find a site (like Paradise) where you can play $2NL.

Dont try and start working out your poker income and decide to go pro (or semipro or whatever) when you have hardly played any hands. You sound like you are pretty new so Id suggest learning the game before you decide to "live off" your poker winnings.