There are two kinds of people in this world, those who break New Year's resolutions and those that don't even bother in the first place because they're done lying to themselves. Seriously, the main reason people make New Year's Resolutions (NYR's) is to assuage their guilt over gorging themselves for a solid two months at the end of the previous year. If you really wanted to buff up and join the gym, you could do that any day of the year. January 1st isn't magical and it's not going to gift you with the motivation to get up at 5 am to go to the gym once the post-holiday sugar rush wears off.
I don't make NYR's precisely because I know Jan. 1 offers no significance to me other than being the first day I'm going to accidentally write last year's date by accident. It's not a new start for me, it's just another day. Every day is a good day to start something new, why wait till January? Wild hairs are not reserved for the first of the year in my book. But some people swear by them as benchmarks to turn over a new leaf, blah, blah, blah, and then guilt ensues.
If you are one of those people destined to fall off the NYR wagon, I just want you to know, it's ok. Give yourself a break; New Year's may not be your jam. What is important is that you don't begin the year by setting yourself up for failure - it's an especially depressing way to start things off. If you know you are the kind of person who will stick to a NYR for all of two weeks, embrace that and love that part of yourself and then let yourself off the hook by saying "fuck it!" We only have so much time and energy to devote to our crazy lives, give yourself props for knowing who you are and embracing it. This year, if you really need a NYR, have it be to let You do You. Don't apologize, don't make excuses, just be your wonderful, non-gym-membership (or whatever else) self and know that you are enough every day of the year.