Hate is not the right word. In fact '$verb it' isn't the right phrase. Rather, the phrase should be: think of your idea as an adversary, a villain or arch enemy

Hate is not the right word. In fact '$verb it' isn't the right phrase. Rather, the phrase should be: think of your idea as an adversary, a villain or arch enemy that you need to defeat. That you need to keep working at to conquer. You don't love or hate arch enemies, but because they exist and cause [you] much distress, you'll end up looking like a hero when you do defeat it. Walking away is not an option. Either you win, and defeat the villain, or you die (or, analogously, rather learn from your mistakes) because if you walk away, the villain will never stop [haunting your mind with what-ifs]. Emotion is not an option, you have to be Batman; stoic, rational, determined. * disclaimer, sometimes I use very strange metaphors.