Tweet “I’m a writer and I have low self-esteem.” That’s what I said on Penn & Teller’s Showtime show Bullshit. It was part true, part Hollywood. But I think anyone would agree that writing for a living can break your heart at times, into itty-bitty tiny shattered pieces. And that’s just on a good day. On a bad day, getting rejected or getting no response, can feel worse than working at a job you hate, for a boss you dislike, in a cubicle that feels suffocating. It can feel like hell-a place where there’s no mercy. Why? Because as full-time work…