Editing. It is bane and bounty.
I borrowed a quote from www.glimmertrain.com that sums up why a writer should buck up and suffer the edit:
That business of compression, of economy, did influence me. A lot of what I’d written was redundant and self-indulgent. It’s impossible to judge how much and to what degree, but I saw that, though I was very reluctant and even outraged to start with, cutting the novel down like that actually improved it.—Barry Unsworth, interviewed by Kevin Rabalais