That fine line

There is a fine line between the good and bad of most things. Eating good is one thing, letting it become an obsession or an eating disorder is another.  Sleeping enough is important,  sleeping too much is bad. Relaxing is good, being lazy is bad.  Between most things the line that defines them from a good thing and a bad thing is really thin.  But where exactly is that line? How do you know where it is, when you are approaching it or even, when you cross over?  It's not easy.

Yesterday I had an early appointment that was cancelled.  Since I didn't have to be at work until 10:30, I decided to stay home and take advantage of the free time.  I worked out, got somethings done around here, etc. By the time I got to work I was completely and totally unmotivated.  I was dragging all day and when I got home I had to take a short nap before walking the dogs.  I did manage to stay up until 10 pm, but I slept like the dead. I woke feeling drugged and I had weird dreams - I dreamed I was at the old lab... Anyway, I think in staying around the house yesterday I crossed that line between relaxing and getting lazy, even though I worked out.

So how do I walk those lines?  How do I move enough to keep my energy up without wearing myself out? How do I eat right without becoming obsessed with the numbers?  How do I do this?  How do you do this?