I need your opinion because I can no longer tell whether what I write is good, bad, or simply terrible. One day I'll look at some of my work and think I'm a literary genius, and the next day cringe, while wondering where I get the nerve to think I could ever be a writer.
But that's what over 100 rejections from agents and publishers, despite two best sellers and over 200,000 in sales.

Oh dear, I think I'm turning bitter.

Please help.