Most things in life fit on something called a normal distribution (Gaussian distribution) curve where ~2/3 of things will be 'average' (near 0):
I suspect poker players are not exempt from this general principle. The monetary gains and losses of ~2/3 of all poker players will be 'average', namely, most will not lose or win much (near 0), with very few losing (-2, -3 SD) or winning (+2, +3 SD) large amounts of money.
If you want to make playing poker as your main source of income, you will have to figure out how to get ahead of the curve in terms of luck and skill (approaching +2, +3 SD): cream rises to the top.
The key to success at poker is bankroll management. I would recommend getting a reliable job (hopefully one you can enjoy), and play poker as a hobby in your free time. If you're able to build and maintain a bankroll that would support you, then you could consider playing poker professionally.
Last edited by ruwbox; 09-29-2008 at 07:54 PM.