In all honesty, I am scared. There is really always that possibility of 'What if I screw up?'  
Maybe I don't have a right to, but that doesn't make the feeling go away.

I'm not sure what is my best anymore. There is always time to squeeze in here and there, there is always more work to be done. And so if I don't make use of that, am I giving my best?
I don't really know anymore.

Sleeping at night is the best and most peaceful part of the day. Sleeping without the knowledge that your alarm will ring in 10 minutes, and sleeping because it's a daily entitlement, not time stolen from anywhere or anything.