The easiest habit for me is obviously habit number one: Begin with the end in mind. Set goals for myself? Check. Accomplish those goals without procrastinating? I'll get back to you on that one.
The hardest habit for me is habit number three: View problems as challenges. As much as I hope to teach and raise my own children to be optimistic and happy, I often find myself full of self-doubt when things go awry. It is very hard for me to see the obstacles as just a small hurdle (Quite ironic, as I was the captain of my high-school hurdling team!) and often end up thinking, "Why me!?!" I'm 23, so I feel like this is something that I will be able to work on as I live and learn.
Well, those are my thoughts in a nutshell on the habits of lifelong learning. Fingers crossed that I actually publish this post without messing it up!