I think the positive energy they exude comes from charting their own course in life. That's how I know this was the right choice for me. They have to have a lot more drive and dedication if they want to get anywhere. When you're ready to put in the effort and willing to go the distance, you will eventually find something. You have to be willing to put the energy into it though.
Action is everything.
Being motivated to do something for yourself and work for it. It's a lot harder than working for an hourly wage, but it's more satisfying. It's up to you whether you fail or succeed.