I missed a week, apparently. I'm just going to do two today.

2.Which is worse, failing or never trying?
I actually read a book that discussed this. It's worse to never try. People tend to have regrets over things going badly, but the worst regrets - the ones that actually get worse over time - are the ones from never trying. Having to wonder "what if" can bog you down much more than knowing what happened. Yes, it sucks to fail, but that often brings enlightenment. Otherwise, you're static and constantly looking back.

3.If life is so short, why do we do so many things we don’t like and like so many things we don’t do?
Obligations. People like ruts, whether they admit it or not. They like to look at scintillating things but to feel comfortable where they are. It's kind of depressing, because there's no progress that way. We make ourselves feel better by saying "One day, I'll..." and then put your you-know-it's-not-gonna-happen activity in the blank. My only hope is that I get a half-and-half life where I get to do at least SOME of the things I want to, rather than consistently bogging myself down with things I would prefer not to do.