As Neil deGrasse Tyson tweeted recently, "Not that anybody's asked, but New Year's Day on the Gregorian Calendar is a cosmically arbitrary event, carrying no Astronomical significance at all."
Anyone who knows the history of the widely-accepted Gregorian calendar should know this. After all, it is the most recent civil calendar.
An amendment on the historical Julian calendar (from Ancient Roman times), the Gregorian calendar is pretty much a baby when it comes to keeping track of dates.
To put this into perspective, the oldest calendar (found in Scotland) is a lunar calendar, which tracks days and months and years based on the moon.
The modern Gregorian calendar is a solar calendar, adapted from several lunisolar calendars throughout history.
What I'm trying to say is that there is no reason for the New Year to make itself the be-all end-all to your "new self".
Given, if what you need is a definitive date to start your dieting or journaling or whatever, January 1st is as good as any to begin. Personally, I try to enact my resolutions once I return to school.
If I were in high school, that would be January 4th. However, the college calendar gives me another ten days to adjust to the "new year" and whatever resolutions I come up with.
It's okay if you get a lazy start to your "new you" of the new year. Sometimes, the best decisions and the best growth happens over a longer period of time than overnight.
The gyms are crowded right now, but they will empty out within a month.
The organic foods have been bought out at the grocery stores, but they will replenish soon. If you take the time to plan your resolutions, you will be more successful.
Here's to 2018-- let's make it better than we could ever dream.