This might be helpful, particularly for newer instructors. If you've been around a while you know that I plot my enrollment data by course and by month as reflected in this graph. It allows me to see month over month, year over year, and unusual data events. Keep in mind that this is not revenue, but enrollments, although there is a very high correlation. This also includes both marketplace and UFB enrollments.
Please note that I am NOT one of the most successful instructors on Udemy. I am a "moderately" successful instructor, which means I am now averaging around 20k per month. My "success" is only success over my own previous results. I suggest that this is a healthy way to measure your own success. I don't want to compare my results to folks like Phil Ebiner, Frank Kane, Scott Duffy, or others because that just makes me feel crappy. I think my data is probably representative of other instructors who are both in the marketplace promotions and in UFB. Please understand that I do very little marketing myself and rely on Udemy's marketing.
Here are some results that may be interesting:
So, I offer this for what its worth. There is still reason to be optimistic about Udemy's growth and marketing.