This is a good thought exercise! Thanks! Even if no one reads this it clears my head a bit 
I wrote/write my comic for myself (it's mostly done), and I know it's long and all over the place, but I love it
. Going back and reading my scripts is so fun, especially when I come across things I forgot I wrote and I get to experience them as an audience member. It's also fun to keep an idea log and see how many ideas I've added and even how many more I've tossed.
I draw my comic to see it come to life and to experiment with colors, because I'm new to using them digitally. Feedback (on webtoon; none here yet) regarding the art has been surprisingly positive, but readers are a little confused, so maybe I'm introducing too many mysteries at once. We'll see. Anyway I'm having fun drawing it.
I share it because why not? If I get a following, that's awesome. I would die if it went big, and I would be extremely happy for that, but I don't have any real sense of that even happening because I've only shared < 1% of the whole story. We've got a ways to go before I hope for anything real.
My goal then, is to consistently keep at it, even if it's just for me, and to not let comments and numbers make me hurt enough to give up. I hope to finish the first "season" within 2-3 years. It may take longer at my pace, but that's okay!