I would give up TV and facebook. I spend so much time on facebook it is crazy. When it comes to the TV I can't really stand watching it anymore. Much rather be reading a book instead or writing.
I would say the plotting and world building notes. It is such a long process it drives me nuts. I would rather get right into the writing but then it just makes more work if you don't try to plan it out a bit before hand.
My first series I wrote is my Tales of Ferrês series. It was a collection of short stories and later bundled into a single book. I released a new story each month and it was a trying process. I did learn to meet deadlines and stop worrying to much about how the story flows. If I ended up having to do rewrites it worked out fine because the story always turned out great. Doing the release schedule the way I did, did make it challenging but it was still fun.
