Do your art. But don't wreck your art if it doesn't lend itself to paying the bills. That would be a tragedy.
Deadlines have a lousy name. Call them live-lines instead. That´t what they are.
The only thing all successful people have in common is that they're successful, so don't waste your time copying "the successful strategies" of others.
Tell your lizard (brain) to shut up.
If you can't sell to 1 in 1000, why market to a million?
You have to pay the price to be in the right place at the right time often enough that people tend to see you as the regular kind.