The Sushi Train Metaphor
People invest a lot of emotion in holding on to their beliefs. And they have a tendency to defend those beliefs very fiercely indeed. Sadly, the first casualties in a confrontation are all too often facts and logic. In fact, they frequently become quite irrelevant. When someone wishes to impress upon you the righteousness of their opinion; passion and volume are often their first weapons of choice.
The idea of setting resolutions is not inherently flawed. However, the way they are approached and executed will impact their success. The simple fact that the resolutions are made upon the advent of the New Year in no way affects the likelihood of you being successful in maintaining them.
Life is a very untidy business. And therapy is a gritty, often very messy process to boot. Psychological problems very seldom occur in isolation. Far more often mental health issues manifest themselves in a combination of complex, interconnected and interdependent ways.