Can I be blunt? I'm going to assume so. Fact is, deleting your work is just stupid, and people do take your work, your getting pretty good downloads here now, and were with your previous work. I'm not sure about not getting any offers through your site, as the most likely place people will get to it is through here, and if people know you through here they probably will try to contact you through here. I can't blame you for trying to make a living out of this, I'm sure nearly all of us want to, but I'd say at LEAST 90% of us aren't. I still work at walmart, and I've been doing this stuff for years now, I even have a degree in graphic arts. But you'll notice I'm still doing it, and still enjoying it. Honestly it doesn't matter what others think of your work, or for what person your doing it for, do it for yourself cause thats what matters the most. One thing I've heard repeatedly from anyfreelancer I know, get a job working for someone first, you'll learn more doing that than you ever will in school, or by yourself.
I'd hate to see you just give up and especially throw all your work away, and I'm not sure what you expect but the people here DO like your work, and tell you that often. If you still decide to give it up at least for now, keep your work anyway. If you want to get back into it, or have an offer your going to need some work to show off as a portfolio. You've been almost just like this before a month or so ago and we talked you out of it then, and you got promoted, hopefully we're able to convince you again.