You are valuable for your contribution to the world even if no one notices. Even if those who notice don’t appreciate it. Your definition of success shouldn’t rely on the approval of others. This goes for creative work as well as the way you treat others.
As the great philosopher Ryan Gosling once said (on the special features of Lars and the Real Girl):
“Love doesn’t have to be a transaction, it can just be given.”
The same goes for art. Success is found in being 100% true to yourself without ever giving up.
Never give up.