1.) My comic is Grassblades
2.) Like a remarkable number of other people in this thread, I too am an INFJ - an INFJ-T/Advocate in my case. Which does seem to fit, even though I find these personality-tests to rarely truly fit me. Still, we are quickly becoming the world's highest concentration of INFJ-ers - though I strongly suspect the test might be skewed towards giving people that result, just to make them feel more special ("We're the one percent!")
3.) I think my personality influences it a lot. I have a bunch of anxieties and fears that I struggle with, and one of the big ones is failing at something. To counter this, I worked up a 50+ page buffer for my comic before I even posted the first page. I like planning ahead and knowing where I'm going, so that I don't have to look at a blank page and wonder "what on earth happens now?"
HOWEVER - while I do plan storyboards and stuff meticulously, I do so only a chapter or two ahead of what I've already drawn, because if I plan TOO much, I kill the story and my joy in creating it. I sit somewhere between an organic storyteller and a super-structured one. Organic structure, that's me!
4.) I think it does, to a certain extent. Like I said, I have a lot of fears and anxieties, and need to be as in control of situations as possible to keep from freaking out - and control of oneself, and the fear that loss of that control triggers, is a central theme in Grassblades. It's not the only theme - the others revolve around things like overcoming trauma, moving forward with one's life, the importance of saving yourself and not relying on other people to do it (but also, just to contrast, allowing oneself to be vulnerable and ask for help; you don't need to be super-human), etc., etc.
Grassblades is a big barrel of stuff, and I'm not sure I can put words to all of it.