Reminding Muslims of what is obligatory upon them in their new year

What is the ruling on one who reminds or preaches to Muslims at the beginning of every year to remember and look at what they did in the past year?
Yes.
There is nothing wrong with it. If he reminds them at the end of the year of the shortcomings or other matters that occurred on their part so that they repent to Allah, there is nothing wrong with it. However, it should not be made a regular, fixed practice.