Let me start off with telling you what motivation is and why you need it.
A motivation is a reason behind doing something a certain way to work yourself up to a certain goal. Just having a goal but no understanding of how to get there, means you have no way to motivate yourself and your goal will be hard to reach.
Therefore motivation is needed desperately in order to become truly good at something.
The motivation to eat is the feeling for hunger and the end goal of ending the hunger and feeling healthy and energized. This type of motivation is a feeling.
Which brings me to: Intrinsic motivation and Extrinsic motivation.
When you have any sort of following, on the internet or otherwise, you tend to become very adverse to criticism. In general, most criticism you get are trolls or an echo-chamber. And real, honest critics towards your work can seem exactly like one of those two groups. If they're harsh, it's easy to see them as a troll. If they're lenient, it's easy to see them as a part of the echo-chamber. Now there are certain ways to decide what's valid and what's invalid and here are some things that I've found will lead to destructive criticism. Keep in mind "everything you do is awesome!" is as much destructive criticism as "everything you do is crap."