Don't trust anyone. There are too many anyones and they will tear you in all directions with their opinions. Only trust yourself, and then only when you are utterly relaxed, almost dreaming, when you don't care about anything or what anyone thinks, and you are almost prepared to die in the next line. Keep your deepest feelings close, but don't EVER let them write your poem or paint your picture. When unsure what to write next, go climbing. There's no such thing as a writer's block. That's just you blocking out the light. It's not an obstacle. Write about the new intrusive shadow.