In one of your posts you were asking about how to write a cover letter. In this post, I can see that you are expressing a wish to "revert back to oDesk". So what was your intention in the other post? It seems to me that you already have an experience as regards writing cover letters based on the tone of this post. I don't understand the kind of help that you are seeking from this forum.
Yeah I did post a question about Tips for writing cover letters, whats wrong in it. Even though I have like 150 plus jobs done here on upwork but dont stop learning dont you? May be I can further improve my cover letters and hence win more projects here on upwork