Realizing the True Source of Your Stress

I came to a realization earlier this week. These expectations. Where did they come from? They were mine. I'm a perfectionist. And I put the unrealistic, backbreaking standards on myself. Is my boss telling me how long this document needs to be? No. Will she know if I forgot to make this point or that point? No. Will I be fired if I'm a few days late in delivering? No. TRULY, REALISTICALLY, what is the worst that would happen?