Either write something worth reading or do something worth writing.
The die is cast; I have written my book; it will be read either in the present age or by posterity, it matters not which.
I awoke one morning and found myself famous.
Nobody is a villain in their own story. We're all the heroes of our own stories.
You love all your characters, even the ridiculous ones. You have to on some level; they're your weird creations in some kind of way.
Ultimately, even though it's a cliche, you really have to just write for yourself.
Having a rock solid idea of how it all should end is counterproductive. If you're too rigid you may miss wonderful opportunities for storytelling.
If you really want the writing itself to be the be all and end all, you should be writing novels.
Don't make any of your plotting decisions out of fear or desperation. Keep the story and the characters simple.