I'm quite thick skinned I think. Nobody likes to hear when people don't like their designs but that's the reality. Also it can only help with the improvement.Hopefully you find the positives in it. A lot of us doing this a long time.
I once spent two weeks on a presentation for a big advertising agency, one of my first gigs. I wad so proud and ready to wow all the pros.
Five minutes in and I was ripped to shreds, my work was literally torn up and thrown in my face.
It was the first and last time I ever let myself be embarrassed like that.
But not as bad as what one of my first jobs when I made a small typo in a book, I was brought out the back and battered!
But I didnt have a forum of pros to draw on at the time.
Believe me, you CAN do it.
If someone handed in what Paul Ramd did for IBM now they would be punched in the dick or equivalent.
Why? Because it is already done.
Put a heavy sweater and a jock strap on cos you are going to be punched and kicked in the crotch (metaphorically)
Thats the graphic design career.
I hope you don't mean you were physically battered as that sounds a little extreme.
Yeah I know any career where your work may one day gain some level of exposure will always be open to scrutiny. It's what I do with the feedback that's important and I will be using it to improve.
Thanks for taking the time out.