When I was a college grad and in my 20s, I would constantly work on side projects, building a startup and consuming as much knowledge as I could find about new tech. I remembered when the iPhone came out, I would spend every minute of my commute learning about how to build an app.
Now that I have a family and am a bit older, I feel much less ambitious. I no longer feel the desire to build a business, or hack on side projects. Granted, a lot of this is because I have less time, but even at work, i feel absolutely no desire to learn new things, or get a promotion.
Is there any way I can revive that ambition again?
What change will ambition bring to your life? Are you not feeling fulfilled? Need more income? What is the actual problem in your life that you are trying to solve?
Answering those questions not only will help HN give you deeper insights... the answers in and of themselves might solidify your goals and thereby put your ambition on-track to where it needs to be.