Modern Roman mythology states that new converts to Jesus should all be baptized on easter sunday. Paul baptized people in the middle of the night if they became believers after sunset (Acts 16:25-34).
Making changes in your life as resolutions on January 1 is a bit like once-a-year baptisms, I think. Today is the day of salvation, I read. What do you need to start? What do you need to finish? Jump on it. Be awesome. Today.