immigration problem (petition)

What did you think about lottery if you were instead me ?
. I have delivered all the requested documents. I have received a document from USA embassy which has indicated that all of my documents are complete and also the interviewer told me that the checking period will take between two week to two months and she told me that the embassy will locate your ID number on the site and you could come and receive your visa. I had participated in Green Card Lottery for many years and now it has been taken from me because of nothing. This opportunity was a gift that has been given to me by USA government but the embassy has taken that gift without any reason. what would you think about lottery if you faced to such mental problems and spent a lot of money and time ? do the us embassy make a decision