I wanted to learn more about the idea in this post, as I’m still somewhat confused.
Thomas was mentioning how he likes to be admired by his writing and poetry, but I have nothing to be admired for. I like my art but I don’t do anything that is original and worth admiring. I see it this way: if I was studying science and had discovered a theory on my own that had already been discovered, what would be the point of showing it? It wouldn’t be new to the world. The same I see no point in showing my art, although I still feel compelled to at times, not sure why. Yes, it’s just my own personal plaything, it has no importance to the world whatsoever. While insults take away the pleasure of enjoying my characters, compliments make me feel like a fraud. I never feel good by showing my work, yet I still feel compelled to do it?
What are my thinking mistakes? Thanks in advance. 
As a fellow artist, I can offer the following advice for motivation: Create art with the purpose of improving - sketch a lot, read books that can help, draw whatever comes to your mind to improve your imagination and self expression. And if you create something that looks professional enough to you - you can show it to others.
The logic of that is that the learning process is a “sensitive” time for external input. It can distract and damage motivation, and therefore there is a need for a firm separation between practice and display. The process of learning is good either alone or with a drawing teacher, but not when you are aware in every step of the way that this will be displayed.
As for psychological visibility for an artist; I find it very satisfying to be understood (when my art is) and getting compliments is very fun too.
I think a person’s art is the key to his/her soul (much like seeing what art someone likes is revealing, only more so). When someone really understands your art, he also understands who you are (or at least some aspects of it), and because of it he can share your kind of world and enjoyment of it. This is a very high level of psychological visibility - the kind not normally achieved between strangers.
So there are great reasons to share your art. However, if you show your art as a way to bypass insecurity, then it’s counter-productive. Your first priority needs to be your progress. If you don’t yet understand why you need to share, but you feel that it damages your motivation, better limit it.