Only the educated are free.
Go for it now. The future is promised to no one.
If you can dream it, you can do it.
Be thine own palace, or the world's thy jail.
The most effective way to do it, is to do it.
Expect problems and eat them for breakfast.
Know or listen to those who know.
Be kind whenever possible. It is always possible.
After a storm comes a calm.
By failing to prepare, you are preparing to fail.
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.