I think that right there is the common thread. We feel bad when we suspect people are not interested because we're doing a terrible job. Some people feel that way when they see low views; others feel that way when they see low subs, low likes, comments, etc. It's not the numbers that get us down. It's the voice telling us that we're not good enough.
The important thing to keep in mind is that none of those factors proves that we're doing a bad job. There could be a hundred different reasons for why you're not getting many X.
That said... it feels a bit... lame to assume the best in spite of a really prominent factor or two, doesn't it? You don't wanna wallow in self-pity, but you also don't wanna just sit there patting yourself on the back. Neither is productive. There could be something you could do to change things for the better.
I'm in that boat myself. I've been trying to figure out what I need to do differently make my comic the best it can be. I don't have any magic answers to make this boat go any faster or smoother... All I can do is keep on rowing against the waves.