Your own business is the way to go so you dont get caught up in the corporate red tape bullshit.
Depends, then you get caught up in all your own bullshit, and owning a business generally accrues more working hours than working for someone else.
When you first start, you are all channels. Accounting, marketing, sales - etc.
Then if you make it, you hire a bunch of smart college educated fuckers to run your shit for you.