Why Do New Year Resolutions Fail?

I know many of us no longer even make any new year resolutions anymore. Some of us have tried and failed and others might just not be into it. All understandable....however, if we DO wanna try...what things can help us see it through? After some reading and reflection of personal experience, the biggest reason was fail is because we all do it alone. Sure we may have a resolution that might be private, and we may want company in the process but can't find any.... but if we try to accomplish things just by ourselves... a lot of the time...it is easy to give up because we are not accountable to anyone. The amount of motivation balances out when/if we choose to achieve our goals together. If one lacks motivation...the other can supply it ...and vis versa. So the best way to have fun along the journey of achievement? Take someone along with you!