The dog that trots about finds a bone.
Go for it now. The future is promised to no one.
Begin to be now what you will be hereafter.
Quality is not an act, it is a habit.
If you can dream it, you can do it.
Expect problems and eat them for breakfast.
To be a good loser is to learn how to win.
Only the educated are free.
Problems are not stop signs, they are guidelines.
Never complain and never explain.
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.