I don't get it.....
There's only 22 items for sale and all of it is from you.
The website seems unprofessionally built....
No verification or security stuff whatsoever.
It needs more refurbishingSSS before people can be convinced to trade there. Moreover the website seem like there's only one moderator and one person who built that site.... and I'd guess that's you.
You'd probably need to invest a hell lot more in hiring webmasters and more professional look and advertising. Otherwise I'm not convinced it's sustainable at all. And get more than one moderator. If there's only one moderator that person would start playing God.