DISAPPOINTED

I am so disappointed that some of my post were rejected or were not accepted. For some reason, I don't understand on what correct grammar do I need to use in order to qualify. It is just so stressful that I have wrote a very long article and was rejected..Geeeee..I am tired of dealing with it and I think I have done my best to write the most perfect post I have ever had..Oh well, maybe it is not for me or maybe I just have to work hard on it. I am sorry guys, I just want to vent and maybe you can give me some points on what to do.