I've gotten back and started sinking deeper into it recently and I'll tell you, it's a tough galaxy out there. Success has a lot more to do with how long you're prepared to stick with it rather than how many raw hours per day/week. You will struggle, you will suffer, you will be repeatedly beaten and robbed. You've got to be slightly mad to stick at it. But once you get hooked up with a good base of people and learn it's systems, nuances, and economic currents, the universe can be yours.
That trailer does not lie.