Thanks frens for yr precious time and suggesstions...@Jai-nepal....sorry fren, but am already in the US university in my 4th semester studying pre-engineering...but the problem is that there is no any 4 yrs engineering degree in my university, so i have to  change my university for rest of the two years, if i wanna pursue engineering...however, this university where am right now, provides me  100% scholarship in everything...so i think, this scholarship is  making me think about switching my major rather than the university....which i am not sure, is a good option or not!!!!!
                                     Any suggestions are most welcomed.