This is hard. "Loving every word you write" looks better on
paper. Easier said that done. Aaron Copland, the famous American
composer, once told another composer his secret to success: "love every
note." In football they call this "not taking a play off." Don't be
lazy, they say. My spirit tells me to re-write that last chapter
because I wrote half of it under pressure of getting it done, and feel
mostly lukewarm about it. I don't love it. But my flesh is weak and
says "just keep get the dang thing done." It's the age old question of
quality over quantity.
I'm hearing another voice interrupting me. It's saying "part of being a professional is writing whether or not you feel like it. And sometimes emotions are flat. Sometimes it's hard to tell if you love what you're writing, because at the moment you may not love anything in particular."
Ok, good point. In that case, yeah, just keep writing. Maybe see a counselor too, and go to church. Go serve someone with an act of kindness. Get some distance from yourself. Fight self-absorption (self-absorption is a precursor to depression). Then look at your writing through a clearer lens that isn't steamed up by the emotional turbulence of your inner world.
Composing music is a little more merciful during such moments. It takes a few minutes to listen to what you've done to see if you truly love every note you've written. It can take a long time to read four chapters all over again and then hit the grind of revising, re-working, re-shaping, cutting, pasting, etc.
It's worth it though. Hang in there. You smell terrific.