The point is that you may not do it well the first time -- but by doing it you will gain experience and know how to improve to make your next go a success. You

The point is that you may not do it well the first time -- but by doing it you will gain experience and know how to improve to make your next go a success. You don't need to be a great (and careful) thinker -- you just need to get expertise at the domain you're doing something in .. and you get that expertise by just doing it!