Do not weep do not wax indignant. Understand.
If you think you can do it, you can.
Leap, and the net will appear.
I can, therefore I am.
The wise does at once what the fool does at last.
Only the educated are free.
If you're going through hell, keep going.
If you've got a talent, protect it.
By failing to prepare, you are preparing to fail.
It's always too early to quit.
There's obviously nothing wrong with selling your art - only an idiot with a trust fund would tell you otherwise. But it's confusing to know how far you should take it.