6. KEEP YOUR WORK TO YOURSELF
7 Ways to Destroy Your Creativity
Todd Brison
37915

This for me, is the absolute killer of creativity. Keeping your work to yourself can seem like the safest option, but it will never help you grow, not like facing rejection/indifference/criticism will. This is one of the hardest things about making art in general, you have to get yourself out there and be ready for whatever reaction it gets.