Getting feedback

Tonight I vent more angst. I post regularly on two photography message boards, looking for feedback on my photos, and to provide support and feedback to others--I don't want to be taking and taking without giving. I get so few responses to my posts, though, and I'm beyond discouraged at this point. I'm trying to figure out if I'm getting better, I think I am, but I don't know! Do I even have any business being in business? I just don't know. :(