Why not me?

I am currently taking an on-line creative writing course. I really enjoy it. I like learning and playing with my writing. I like reading other people's posts. I am the person who always encourages my fellow classmates who think they cannot accomplish their goals. The question is, why can't I be my own cheerleader?

I can write a glowing message to Maggie saying she can accomplish all of her dreams. I tell her rejection and/or criticism is just a tool to make her story stronger. I can believe in a faceless woman named Maggie. Why is it so hard to believe in Susan?