It's easy to identify awesome goals. It is "impossible" to shut off from them. The idea of achieving them is exciting- really exciting. It can (will) become an obsession.
My goal (in this case a business related goal) was so big I would describe it in itself as a passion or purpose to my daily existence. You don't get this drive from simply wanting more money- I don't think about money that much anymore as my work really is more exciting. My mistake for many years was setting goals that I truthfully was not that interested in- and I used to do that in all areas of my life. I think it's easier in hindsight to tell the awesome goals from the crappy ones- but in truth even the crappy ones are easily identified at the time. You have to force yourself to work on them, you procrastinate, find excuses, re-prioritise other tasks etc. When you are obsessed with a goal this is not so easy- I certainly found my goal had to be ridiculously big before I was inspired enough to take action to change my professional career into self-employment.