There's probably nothing more crushing than failing after you've given your all, your everything, to a project, a business, a relationship, or to life, in general. Just the thought of being rejected, of being declined, of failing, is a depressing thought. All the hours you've spent building up your strength, your knowledge, or your finances, all will have been for nothing. And it hurts, it truly does. But it's not the end of the world, you know. This...