To be fair this is very much a "first time exposing your creation" problem. Every budding creator get through that at first. I've been around writing on the net for over fifteen years now, so my skin pretty thick, but the first year or so? Oh man I walked away off project more than I care to remember because of that.
There's just a point where as creator you start to... just go over it. There's a point where critics are easy to discern from attacks disguised as such and your eyes somewhat glaze over the idiots, but like you need actual real creating experience for that. Managing that is a whole over can of worms that a LOT of people just aren't ready for.
It's a pain in the ass, but if anyone of you end up starting making something and put it on the internet, you better be ready for people to come in and do NOTHING but tear it down piece by piece, sometime because there's a genuine reason, sometime just because they have an opportunity to hurt you for shit and giggles.
edit: I always hated the "get a thicker skin" thing when I was younger, but there's really not much else to do. Creating things is a personal, emotional endeavor, any attack on THAT is going to hit deeper than a fist to the face if you're not prepared for it. And there's not much else to do to get a thicker skin than to go on trial by fire every single darn day you put yourself out there.