Mate it is a matter of perspective
I've been there myself and I am trying to get a hang on things each time. Usually, when you create something that you like, chances are that more people will like it too, but there are times when things are not like that and people don't resonate, or at least, not as many people as you would expect, in respect to the level of contentment that your creation has generated for you.
That does not mean it is not good, it can be great and if you reach the heart of one person, I think your job is done because your message has reached the destination