Yes, and I agree with rwelton that you can take stock of your life whenever you want to.
I think people tend to get so disappointed with themselves whenever they make new year's resolutions and break them.
It's because they cannot really achieve true keeping of their resolutions because they are not perfect and need Someone outside of themselves to give them the pure desire and His strength to do what is good and right at the moment.
We cannot rely on ourselves without messing up, so let's no dwell on ourselves but on the One who can work His good in us.
Without us being so aware of it, He will be changing us in ways that will affect change in us in all the areas we need to change!
I'm excited to see God changing me - I am quite different from who I was as a high school graduate.