Good luck with everything in the future, Jex. I'm not sure if we ever got along or anything, most of the replies to my things I remember from you were rather negative...but that doesn't matter. I read your comic from start to finish. That's more than I can say for a fair chunk of this site.
I'll put it this way, I'm still trying to sift through Star Bored, and people really seem to love that one. Good comic, btw
I suggest doing what faub does. Take a break, don't fire yourself. If you're worried about your comic not being a success, you might be doing it for the wrong reasons, but if this thread is any indication, you're not doing that bad. If I had made a similar thread, I might get one or two screaming fangirls clinging at my legs begging me not to leave. I've counted more than 2 here. Several more than 2.
I've been told making a webcomic big is a gradual process. This isn't the early days of webcomicry, where we didn't have much selection, but it was obvious what was grand, and what was garbage. There's A LOT more of them now, and it's simply harder to grab a reader and drag them kicking and screaming to the deep dark pit we call a fanbase.
If you're doing this for readership, then you gotta keep at it. You need a break. If you're doing this for you, then you still need a break...but if you really want to leave, that is ultimately your decision.
Your absence will be noticed, and good luck with your future endeavours.