The new year

I'm going to talk about the people who change his mentality when the New Year starts. My question is: Why you want to change your life style before, it's completely necessary this change in new year? I think it's not a good start because you must start as always before. Don't let for tomorrow what can you do today, start as always possible. Do whatever you want for free voluntary, not for the obligation of start something just because is New Year. There are a lot of differencies between do it because you want to change or because you are in a trend.